Tourmaline (synonymous with tourmaline group) comprises trigonal borosilicates of the cyclosilicate superclass. The nomenclature was revised by Henry et al. (2011). Notes on the general formula: - Additional cations are reported substituting in minor amounts for the principal cations of the G and D sites.Mindat.org is the world's leading website about minerals and where they come from.A barian vanadian variety of Muscovite. Originally reported from Silver Knob, Fish Camp, Yosemite Valley, Mariposa Co., California, USA. Barium-bearing Muscovite. A barium-rich variety of muscovite; probably equivalent to oellacherite; part of the series between muscovite and ganterite.An unnecessary name for a manganoan variety of siderite, with up to 40% MnCO3 [Clark, 1993 - "Hey's Mineral Index"]. Obsolete name for a Mg-bearing variety of siderite with the Fe:Mg atomic ratio ranging from 70:30 to 50:50. Originally reported from Thurnberg Mt., Flachau, Radstadt, Salzburg, Austria.In today’s fast-paced business environment, effective communication is crucial for the success of any organization. One way to enhance communication and collaboration within your t...Website addresses that end in “org” are not for profit organizations. These sites contain information that is generally considered to be reliable. Planned Parenthood, the American ...版权所有© mindat.org1993年至2024年，除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。 隐私政策 ...Mindat.org - Mines, Minerals and MoreA greasy, wax-yellow to reddish-brown weakly radioactive mineral, most commonly found in metamorphic rocks and pegmatites, associated with allanite, cerite, tysonite, fluorite, and tornebohmite. The group members may be part of the Bastnäsite-Vaterite Homologous Series.This page lists the most recent photo galleries put together by members of mindat.org. Anyone can create their own gallery, log in, go to the …mindat.orgComplete, up-to-date, mineral database containing 4,714 mineral species descriptions and comprehensive picture library of images. These data are … Malachite is a green, very common secondary copper mineral with a widely variable habit. Typically it is found as crystalline aggregates or crusts, often banded in appearance, like agates. It is also often found as botryoidal clusters of radiating crystals, and as mammillary aggregates as well. Single crystals and clusters of distinguishable ... Quartz is one of the most common and versatile minerals, with many varieties and optical properties. Learn more about its chemical composition, crystallography, physical properties, classification, origins, and localities at mindat.org, the largest mineral database and reference website on the internet.Brochantite je zelený minerál síranu mědi, který tvoří krásné krystaly různých tvarů a velikostí. Na této stránce naleznete podrobné informace o jeho vlastnostech, výskytu, historii a fotografiích z různých lokalit po celém světě. Pokud máte zájem o brochantite, neváhejte navštívit tuto stránku a objevte jeho krásu a zajímavost. Steel-grey to black in crystals and massively crystalline ores, dull to bright "rust-red" in earthy, compact, fine-grained material. Originally named about 300-325 BCE by Theophrastus from the Greek, "αιματίτις λίθος" ("aematitis lithos") for "blood stone". It is possibly the first mineral ever named ending with a "-ite" suffix. 22 Jan 2024 ... Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete ...Biagioni et al. (2020) delineate the series of Ag-poor tetrahedrites, where Ag < 3 apfu, belong to the tetrahedrite series. Although originally considered a series between tetrahedrite-(Fe) and tetrahedrite-(Zn), the two most common end-members, there are now (as of November 2023) seven IMA-recognized end-members.Hence, the former …Are you curious about your family history? Do you want to learn more about your ancestors and where you come from? Look no further than FamilySearch.org, a free online platform tha...Named in honour of Catalan gemmologist Joan Abella i Creus (born 13 December 1968, Sabadell, Catalonia, Spain) who has long studied the minerals of the Eureka mine and also found the mineral. Type Locality: ⓘ Eureka mine, Castell-estaó, La Torre de Cabdella, La Vall Fosca, El Pallars Jussà, Lleida, Catalonia, Spain. Dimorph of: Abellaite.Oct 18, 2023 · Ralph Jolyon, mindat.org. This database contains worldwide information on minerals, mineral localities and other mineralogical information. In part supported by advertising, it stores data on 25,000 different minerals, varieties and synonyms listed with over 4,000 valid mineral and mineraloid names. The database is searchable by name ... Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Copyright © mindat.org and the Hudson ...mindat.orgDark or black iron rich (10% of the magnesium site) dolomite found as euhedral crystals embedded in gypsum-rich marls, originally described from Teruel, Aragón, Spain. The name has been used in recent times for similar dolomite crystals of any colour,... Zinc-bearing Dolomite. A variety of dolomite containing Zinc.Ilmenite: Mineral information, data and localities. - mindat.orgIlmenite is a titanium-iron oxide mineral that is one of the main sources of titanium. It occurs in various geological settings, from igneous to metamorphic rocks. Learn more about its properties, occurrence, associations, and uses on mindat.org, the largest online …Libethenite is a secondary copper phosphate mineral found in the oxidized zone of copper ore deposits. The phosphate is often derived from the weathering of apatite and other rock-forming phosphates such as monazite and xenotime. A rare case of probable primary libethenite from a greisen deposit is reported by Sejkora et al. …About Plancheite Hide. Pale blue to deep blue, pale greenish blue. Named by A. Lacroix in 1908 in honor of François Gilbert Planche (4 June 1866, Tarare, Rhône-et-Loire, France - 24 May 1924, Gap, Hautes-Alpes, France), was an industrialist and a politician. He built dams and power plants, and founded several rail companies.In today’s digital age, where convenience and efficiency reign supreme, it comes as no surprise that more and more members of The Church of Jesus Christ of Latter-day Saints are op...The calculation of the chemical composition is straight-forward. The molecular weight from the empirical formula divided by the sums of the atomic weights of each …Canada : Canada is divided into ten provinces and three territories. Each of these entities may have different types of subdivision, used for various purposes. Introduction. Mindat.org is the world’s leading authority on minerals and their localities, deposits, and mines worldwide. Mindat.org’s mission is to advance the world’s understanding of minerals. Mindat.org has been collecting, organising, and sharing mineral information since October 2000. It is now an essential resource used daily ... Mindat.org is a non-commercial interactive online database covering minerals across the world. Originally created by Jolyon Ralph as a private project in 1993, it was …Named after Matthias Joseph Anker (1771-1843), Styrian (Austria) mineralogist. Originally considered to be Ca (Mg,Fe) (CO 3) 2 (eg. Hey, 1955, with >10% FeCO 3) with no specific requirement for Fe>Mg, before being redefined as strictly having Fe>Mg, i.e. with the dominant endmember CaFe (CO 3) 2. It was commonly given …The following result(s) were found: Search returned: 376 items. Only items listed in bold are recognised mineral species. ... Mindat.org is an outreach project of ...Descloizite is a rare zinc and vanadium mineral that forms brown to black crystals with various habits. It is often associated with other secondary minerals in oxidized zones of base metal deposits. Learn more about its properties, occurrence, and uses at Mindat.org, the largest and most comprehensive mineral database online.mindat.orgIn the world of business, there’s a slew of reasons why you may need an org chart. But while you can use different types of presentation software or specialty applications to creat...Diamond is a rare and valuable mineral composed of pure carbon. It has a hardness of 10 on Mohs scale and a high refractive index. It is often found in association with kimberlite, a volcanic rock that originates from the mantle. On mindat.org, you can learn more about the properties, occurrences, varieties and localities of diamond and other minerals.A greasy, wax-yellow to reddish-brown weakly radioactive mineral, most commonly found in metamorphic rocks and pegmatites, associated with allanite, cerite, tysonite, fluorite, and tornebohmite. The group members may be part of the Bastnäsite-Vaterite Homologous Series.Cornetite is a rare copper phosphate mineral with a striking blue color and a complex crystal structure. Learn more about its properties, occurrence, and history at Mindat.org, the largest and most comprehensive mineral database and reference website on the internet.mindat.orgType Locality: ⓘ Rutile type locality, Horcajuelo de la Sierra, Community of Madrid, Spain. Polymorph of: Akaogiite, Anatase, Brookite, Riesite, UM1991-08-O:Ti, UM2000-41-O:Ti (TiO2-II) The most common member of the Rutile Group. Rutile is one of the five forms of titanium dioxide, TiO 2, found in nature.Mindat.org has an enormous resource of educational articles and other content, and whether you're a beginner or an expert we have all the information you need. These have been divided into three sections: Introductory Articles These articles are suitable for everyone wanting to learn about rocks and minerals.About Pyroxene Group Hide. Named in 1796 by Rene Just Haüy from the Greek words for fire (πυρ) and stranger (ξένος). Pyroxene was named because of its presence in a glassy or vitreous lava. Pyroxene was believed to be an impurity in the glass, and therefore a "stranger to fire" and not formed by the action of heat.Ilmenite: Mineral information, data and localities. - mindat.orgIlmenite is a titanium-iron oxide mineral that is one of the main sources of titanium. It occurs in various geological settings, from igneous to metamorphic rocks. Learn more about its properties, occurrence, associations, and uses on mindat.org, the largest online …3 Oct 2019 ... It will be free, but more features will be unlocked if you have at least one sponsored locality - so get sponsoring. Also, the more donations we ...Are you curious about your family’s past? Have you ever wanted to trace your lineage back to the beginning of time? With FamilySearch.org, you can do just that. FamilySearch.org is...Named in 1845 by Alexander Löwe in honor of Johann Rudolf Ritter von Gersdorff [March 18, 1781, Bochnia, Galicia, Poland – April 30, 1849, Vienna, Austria], mining expert and owner of the nickel mine at Schladming (ca. 1842). With the description of polymorphs in 1982, the name was changed to gersdorffite-P2 1 3.Galena is a common and important lead ore mineral that has a metallic luster and cubic crystals. Learn more about its properties, occurrence, associations, and uses at mindat.org, the largest mineral database and reference website on the internet.Mineral Names - mindat.org. Mindat.org is the largest database of minerals, mineral photos and mineral localities online. If you have not visited this site before then I …Chemistry of Staurolite Hide. Mindat Formula: Fe2+2Al9Si4O23(OH) The formula can also be considered as alternating layers of kyanite and oxide, and so can be recast as: 4Al 2 O [SiO 4]. AlFe 2+2 O 4 H. Elements listed: Al, Fe, H, O, Si - … Search Minerals By Chemistry. To use the chemical search form click on an element to select it (matches MUST INCLUDE this element.) It will turn yellow. Click again to mark it as excluded (matches MUST NOT INCLUDE it), it turns black. Noble gasses and elements not found in nature are excluded. When finished hit one of the search buttons. Family history is an important part of our lives, and it can be a fun and rewarding experience to uncover the stories of our ancestors. With the help of FamilySearch.org, you can e... Chalcopyrite Group. Chalcopyrite-Eskebornite Series. A major ore of copper. Common in sulfide veins and disseminated in igneous rocks. Weathering may lead to the formation of malachite, azurite, brochantite, langite and numerous other secondary copper minerals. Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Copyright © mindat.org and the Hudson ...Mindat.org - Mines, Minerals and MoreNamed by James Dwight Dana in 1850 in honor of Arthur Connell [November 30, 1794, Edinburgh, Scotland - October 31, 1863], professor of chemistry at St Andrew's University, Edinburgh, Scotland, who first studied the mineral. Type Locality: ⓘ Wheal Providence, Providence Mines, Carbis Bay, St Ives, Cornwall, England, …Although far superior celestine crystals were previously known from Sicily, they were thought to be barium-rich as the element strontium was not discovered until the late 1780s and not formally described until 1792. Type Locality: ⓘ Bell's Mill, Bellwood, Blair County, Pennsylvania, USA. Baryte Group.Tourmaline (synonymous with tourmaline group) comprises trigonal borosilicates of the cyclosilicate superclass. The nomenclature was revised by Henry et al. (2011). Notes on the general formula: - Additional cations are reported substituting in minor amounts for the principal cations of the G and D sites. Hemimorphite is a valid mineral species with hemimorphic crystals and a chemical formula of Zn4Si2O7(OH)2·H2O. It occurs in various colors and forms, often associated with other minerals such as rosasite, calcite and plattnerite. Mindat.org is the largest and most comprehensive online database of minerals, mines and localities, where you can find detailed information, photos and references ... Ilmenite: Mineral information, data and localities. - mindat.orgIlmenite is a titanium-iron oxide mineral that is one of the main sources of titanium. It occurs in various geological settings, from igneous to metamorphic rocks. Learn more about its properties, occurrence, associations, and uses on mindat.org, the largest online … Malachite is a green, very common secondary copper mineral with a widely variable habit. Typically it is found as crystalline aggregates or crusts, often banded in appearance, like agates. It is also often found as botryoidal clusters of radiating crystals, and as mammillary aggregates as well. Single crystals and clusters of distinguishable ... Mindat Fellows 2024. The Mindat Fellows program is a way for you to help ensure the long-term survival of mindat.org and for you to proudly show others your support to help encouage others to do the same. Fellows will be receiving benefits such as advanced priority access to new features, priority support and special VIP events. Mindat.org - Mines, Minerals and MoreMindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Copyright © mindat.org and the Hudson ...Usually found as matte-black powdery to fibrous crusts, sometimes in botryoidal aggregates or columnar, more rarely as druzes of small prismatic to tabular, dark grey metallic crystals. May be confused with some manganese oxides such as todorokite (fibrous variants) and manganite (tabular crystals). NOTE: No valid pyrolusite dendrites are known.Are you a member of The Church of Jesus Christ of Latter-day Saints? If so, you may already be familiar with the convenient online platform, store.lds.org. Renewing your LDS store ...Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Copyright © mindat.org and the Hudson ... Dark or black iron rich (10% of the magnesium site) dolomite found as euhedral crystals embedded in gypsum-rich marls, originally described from Teruel, Aragón, Spain. The name has been used in recent times for similar dolomite crystals of any colour,... Zinc-bearing Dolomite. A variety of dolomite containing Zinc. Chalcedony is a variety of quartz that forms in different colors and patterns. Learn more about this fascinating mineral, its properties, localities and history at mindat.org, the largest online database of minerals and geology.Name: From the Greek κακός for "bad" and ξένος for "guest" due to the fact that the phosphorous content of cacoxenite lessens the quality of iron smelted from ore containing it. Type Locality: ⓘ Hrbek Mine, Svatá Dobrotivá (St Benigna), Zaječov, Beroun District, Central Bohemian Region, Czech Republic. A secondary mineral found ...Donate to Mindat Corporate Sponsorship Sponsor a Page Sponsored Pages Mindat Advertisers Advertise on Mindat. Learning Center What is a mineral? The most common minerals on earth Information for Educators Mindat Articles The Elements The Rock H. Currier Digital Library Geologic Time.mindat.org; Hudson Institute of Mineralogy project MinDat.org; Mindat.org: The Mineral and Locality DatabaseMindat.org has an enormous resource of educational articles and other content, and whether you're a beginner or an expert we have all the information you need. These have been divided into three sections: Introductory Articles These articles are suitable for everyone wanting to learn about rocks and minerals.a trade name for any white feldspar with a blue schiller. Commonly microcline rarely orthoclase, and the plagioclase series. contains albite with its variety peristerite has moonstone's blue schiller Antiperthite and anorthoclase may show schiller similar to moonstone and have been lumped together in moonstone.BoysTown.org is a non-profit organization dedicated to providing life-changing support and services to at-risk youth. By donating to BoysTown.org, you are directly contributing to ... 全球矿物数据库网站 （ Mindat.org ）为非赢利性在线数据库，号称是互联网上最大的 矿物 数据库和 矿物学 参考网站。. 为专业矿物学家、 地质学家 和业余矿物收藏者所使用。. 该网站包含了重要矿产条目、地点和照片目录。. 注册编辑者可在定期更新的数据库中 ... About Bustamite Hide. Name re-used in 1922 by Esper Signius Larsen, Jr. and Earl Victor Shannon for a new mineral somewhat chemically similar to the original material, but which had proved to be a mixture. The original bustamite from Real de Minas, Fetela (Tetela de Ocampo), Jonotla, Mexico was a mixture of rhodonite and johannsenite. Mindat.org is the world's leading website about minerals and where they come from. 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Orthoclase: Mineral information, data and localities. - mindat.orgOrthoclase is a common potassium feldspar that forms igneous and metamorphic rocks. It has a monoclinic or triclinic crystal system and a hardness of 6. It shows perfect cleavage and a vitreous to pearly luster. Learn more about its properties, occurrence and …If you are a member of Kaiser Permanente (KP), you may be familiar with the term “kp org welcome.” KP.org is an online platform that provides members with a wide range of tools and... Hemimorphite is a valid mineral species with hemimorphic crystals and a chemical formula of Zn4Si2O7(OH)2·H2O. It occurs in various colors and forms, often associated with other minerals such as rosasite, calcite and plattnerite. Mindat.org is the largest and most comprehensive online database of minerals, mines and localities, where you can find detailed information, photos and references ... Mindat.org is the largest database of minerals, mineral photos and mineral localities online. If you have not visited this site before then I suggest you visit our home page to learn more about mindat and the powerful search functions we offer. Co-Type Localities: ⓘ Jáchymov, Karlovy Vary District, Karlovy Vary Region, Czech Republic. ⓘ Breitenbrunn, Breitenbrunn, Erzgebirgskreis, Saxony, Germany. Fluorite Group. Fluorite is found as a common gangue mineral in hydrothermal veins, especially those containing lead and zinc minerals. It is also found in some …Copper is a common and versatile metal that forms many minerals, such as azurite, malachite, chalcopyrite and bornite. Learn more about the properties, occurrence and uses of copper minerals at mindat.org, the largest and most comprehensive mineral database and website. Quartz is one of the most common and diverse minerals on earth, and mindat.org is the largest and most comprehensive mineral database and reference website on the internet. Learn about the properties, varieties, localities, and photos of quartz from different sources and contexts. Explore the fascinating world of quartz with mindat.org. About Plancheite Hide. Pale blue to deep blue, pale greenish blue. Named by A. Lacroix in 1908 in honor of François Gilbert Planche (4 June 1866, Tarare, Rhône-et-Loire, France - 24 May 1924, Gap, Hautes-Alpes, France), was an industrialist and a politician. He built dams and power plants, and founded several rail companies.Monoclinic. Name: From the ancient Persian lazhward, meaning "blue", in allusion to the color. Name changed to azurite in 1824 by François Sulpice Beudant. Type Locality: ⓘ Chessy copper mines, Chessy, Villefranche-sur-Saône, Rhône, Auvergne-Rhône-Alpes, France. A secondary copper mineral frequently found in …A dark green chromium-rich gem variety of beryl. Raspberyl. A marketing term for a raspberry-red beryl, also used for some raspberry-red pezzottaite (cesium beryl) crystals from Madagascar. Note that there is no relationship between the raspberry-red colour and the cesium content, i.e. a raspberry-red beryl can be... Type Locality: ⓘ Tsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia. Adelite-Descloizite Group. Conichalcite-Duftite Series. Duftite-Mottramite Series. Duftite-alpha is possibly a variety of Duftite isostructural with descloizite (for literature see duftite). Modern studies needed. Family history is an important part of our lives, and it can be a fun and rewarding experience to uncover the stories of our ancestors. With the help of FamilySearch.org, you can e... Search Minerals By Chemistry. To use the chemical search form click on an element to select it (matches MUST INCLUDE this element.) It will turn yellow. Click again to mark it as excluded (matches MUST NOT INCLUDE it), it turns black. Noble gasses and elements not found in nature are excluded. When finished hit one of the search buttons. Type Locality: ⓘ Atacama, Chile. Polymorph of: Botallackite, Clinoatacamite. Atacamite Group. A secondary copper mineral formed through the oxidation of other copper minerals, especially in arid, saline conditions. May be confused with brochantite. May alter to malachite and chrysocolla, creating pseudomorphs.Orthorhombic. Member of: Tuhualite Group. Name: Named after Jack Zektzer (1936 - ), mineral collector of Seattle, Washington, USA, who presented the material for study. Type Locality: ⓘ Washington Pass, Golden Horn Batholith, Okanogan County, Washington, USA. Tuhualite Group. Visit gemdat.org for gemological information about Zektzerite.Jean-Marc's Home Page ... I have collected minerals since I was fifteen. Ten years later, I started collecting micro-minerals. It was the very beginning of ...Tremolite is a calcium magnesium silicate mineral with a fibrous or prismatic habit. It is a common metamorphic mineral in skarns, marbles and calc-silicate rocks. Learn more about its properties, localities, photos and data on mindat.org, the largest and most comprehensive mineral database and reference website on the internet.This page lists the most recent photo galleries put together by members of mindat.org. Anyone can create their own gallery, log in, go to the …FamilySearch.org is a valuable resource for anyone interested in genealogy and tracing their family history. With its vast collection of records, helpful tools, and collaborative f...Family history is an important part of our lives, and it can be a fun and rewarding experience to uncover the stories of our ancestors. With the help of FamilySearch.org, you can e..."Apatite" is a field term for unidentified calcium phosphate members of the apatite group. Most "apatite" is fluorapatite, whereas hydroxylapatite is much less …JW.org is a website that serves as the online home for Jehovah’s Witnesses. It offers a wide range of features and resources designed to provide users with valuable information abo...Amphibole is a group of minerals with complex chemical compositions and diverse physical properties. They are important rock-forming minerals in many igneous and metamorphic rocks. Learn more about the amphibole supergroup, its classification, crystal structure, and occurrence at mindat.org, the world's largest mineral …An unnecessary name for a manganoan variety of siderite, with up to 40% MnCO3 [Clark, 1993 - "Hey's Mineral Index"]. Obsolete name for a Mg-bearing variety of siderite with the Fe:Mg atomic ratio ranging from 70:30 to 50:50. Originally reported from Thurnberg Mt., Flachau, Radstadt, Salzburg, Austria.Are you curious about your family’s past? Have you ever wanted to trace your lineage back to the beginning of time? With FamilySearch.org, you can do just that. FamilySearch.org is...If you’re a member of The Church of Jesus Christ of Latter-day Saints, you may be familiar with the convenience of shopping on store.lds.org. This online store offers a wide range ...mindat.orgIn today’s digital age, where convenience and efficiency reign supreme, it comes as no surprise that more and more members of The Church of Jesus Christ of Latter-day Saints are op...Tremolite is a calcium magnesium silicate mineral with a fibrous or prismatic habit. It is a common metamorphic mineral in skarns, marbles and calc-silicate rocks. Learn more about its properties, localities, photos and data on mindat.org, the largest and most comprehensive mineral database and reference website on the internet. Search Minerals By Chemistry. To use the chemical search form click on an element to select it (matches MUST INCLUDE this element.) It will turn yellow. Click again to mark it as excluded (matches MUST NOT INCLUDE it), it turns black. Noble gasses and elements not found in nature are excluded. When finished hit one of the search buttons. Chalcocite is a copper sulfide mineral with a hexagonal crystal structure and a metallic luster. It is a valuable ore of copper and a source of various copper minerals. Learn more about its properties, occurrence and uses at mindat.org, the largest mineral database and reference website on the internet. Mindat Fellows 2024. The Mindat Fellows program is a way for you to help ensure the long-term survival of mindat.org and for you to proudly show others your …The most common simple iron oxide mineral. A weathering product of numerous iron-bearing minerals. Goethite may crystallize from a precursor - a not approved species called 'proto-goethite'. May also form due to mineralization of lichen ( Parmelia conspersa) thalli on metamorphics (e.g., gneisses), granites, feldspars. Amphibole is a group of minerals with complex chemical compositions and diverse physical properties. They are important rock-forming minerals in many igneous and metamorphic rocks. Learn more about the amphibole supergroup, its classification, crystal structure, and occurrence at mindat.org, the world's largest mineral database. Mimetite is a lead arsenate chloride mineral that often resembles pyromorphite. It forms prismatic, hexagonal or acicular crystals with various colors and lusters. Mindat.org provides detailed information about mimetite's formula, structure, properties, occurrences, photos and more. Mindat Fellows 2024. The Mindat Fellows program is a way for you to help ensure the long-term survival of mindat.org and for you to proudly show others your support to help encouage others to do the same. Fellows will be receiving benefits such as advanced priority access to new features, priority support and special VIP events. Calcite-Rhodochrosite Series. A very common and widespread mineral with highly variable forms and colours. Calcite is best recognized by its relatively low Mohs hardness (3) and its high reactivity with even weak acids, such as vinegar, plus its prominent rhombohedral cleavage in most varieties. NOTE on the unit cell and …Named in 1845 by Alexander Löwe in honor of Johann Rudolf Ritter von Gersdorff [March 18, 1781, Bochnia, Galicia, Poland – April 30, 1849, Vienna, Austria], mining expert and owner of the nickel mine at Schladming (ca. 1842). With the description of polymorphs in 1982, the name was changed to gersdorffite-P2 1 3.If you are a medical professional looking for comprehensive resources and benefits, you may have heard of ACP Benefits Org. One of the biggest benefits of applying for ACP Benefits...Quartz is one of the most common and versatile minerals, with many varieties and optical properties. Learn more about its chemical composition, crystallography, physical properties, classification, origins, and localities at mindat.org, the largest mineral database and reference website on the internet.Here are links to different search pages that allow you to search for minerals or find minerals with particular properties. Search for minerals by physical properties. …Smithsonite is a zinc carbonate mineral that was named after James Smithson, the founder of the Smithsonian Institution. On mindat.org, you can find detailed information about the properties, occurrence, and photos of this mineral from various localities around the world. Whether you are a collector, a researcher, or a curious learner, you will enjoy exploring …Acanthite is the low-temperature modification of silver sulphide. All natural silver sulphide specimens at room temperatures are acanthite. The structure of Argentite, the high-temperature cubic (isometric) form cannot be quenched. At atmospheric pressure, argentite is stable above 177°C and acanthite is stable below 177°C.Roselite Group. Name: Named in 1824 by Armand Levy in honor of German mineralogist Gustav Rose [March 18, 1798 Berlin, Germany – July 15, 1873 Berlin, Germany], Professor of Mineralogy, University of Berlin. Type Locality: ⓘ Rappold Mine, Neustädtel, Schneeberg, Erzgebirgskreis, Saxony, Germany. Dimorph of:Tremolite is a calcium magnesium silicate mineral with a fibrous or prismatic habit. It is a common metamorphic mineral in skarns, marbles and calc-silicate rocks. Learn more about its properties, localities, photos and data on mindat.org, the largest and most comprehensive mineral database and reference website on the internet. Mount Malosa, Zomba, Southern Region, Malawi Dimensions: 4.8 cm x 3.7 cm x 2.8 cm A fine miniature combination from recent finds at Mount Malosa. A 3.1 cm, sharp, terminated, greenish-black aegirine crystal with mirror-luster prism faces is aesthetically set and angled between two sharp, blocky, well-formed, porcellaneous ivory-colored microcline crystals. Cornetite is a rare copper phosphate mineral with a striking blue color and a complex crystal structure. Learn more about its properties, occurrence, and history at Mindat.org, the largest and most comprehensive mineral database and reference website on the internet.A mineral is a chemical element or compound that: 1. has a more-or-less constant composition. 2. is usually a solid with an ordered three dimensional array of ions and molecules in its crystal structure. 3. is formed by natural geologic processes and without human or other biologic intervention.Type Locality: ⓘ Wheal Jane (Falmouth Consolidated Mines), Cornwall, England, UK. Isostructural with: Metaswitzerite, Sterlinghillite, Switzerite. A secondary phosphate mineral in complex granitic pegmatites; also found in polymetallic veins. Visit gemdat.org for gemological information about Ludlamite. Eudialyte is a colorful and rare mineral that belongs to the Eudialyte Group. It is mainly found in alkaline and peralkaline rocks, and often contains rare-earth elements and zirconium. Learn more about its chemical formula, crystal structure, physical properties, and localities at mindat.org, the largest mineral database and reference website on the internet. Search Minerals By Chemistry. To use the chemical search form click on an element to select it (matches MUST INCLUDE this element.) It will turn yellow. Click again to mark it as excluded (matches MUST NOT INCLUDE it), it turns black. Noble gasses and elements not found in nature are excluded. When finished hit one of the search buttons. About Brazilianite Hide. Chartreuse yellow, pale yellow, yellow green, colourless; coloured varieties are colourless in transmitted light. Named by Frederick Harvey Pough and Edward Porter Henderson in 1945 for the type locality country, Brazil, where it was first found. Visit gemdat.org for gemological information about …. Cami cakes locations, Pnnl staff directory, Maywood dr, Food places that deliver near me chinese, 1989 cardigans, Hey it's me the thing i want to be you, The middle common sense media, Will taylor swift tour in 2024, Peyton coffee nips.