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Mindat.org was founded by Jolyon Ralph, based on an earlier DOS/Windows application called Mindat that was started in 1993. This is the story of how mindat.org ...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 …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 - …mindat.org

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 ...ID Species Reference Link Year Locality Pressure (GPa) Temp (K) 0014806: Francevillite: Mereiter K (1986) Crystal structure refinement of two francevillites, (Ba,Pb)[(UO2)2V2O8]*5H2O Neues Jahrbuch fur Mineralogie, Monatshefte 1986 552-560 1986: Mounana, near Franceville, Gabon: 0: 293: 0014807

mindat.orgSpecimen Photo Search. Enter a mineral/rock name (eg Almandine ), and part of a region name (eg Alaska) and this search will find all photos from localities within the region of that mineral. Select type of photo to search and either check all photos or select a subtype for the photos. Alternatively, enter a keyword or photograph type …

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 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. 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. Calcite Group. Often confused with Cobaltoan Calcite or Cobaltoan Dolomite. NOTE: This is the correct and approved IMA spelling ("sphaerocobaltite" is incorrect). Palache, Berman, and Frondel (1954) list this species as "cobaltocalite" and a confusion is common between the former "cobaltocalcite" and "cobaltoan calcite".

Opal adalah mineral silika amorf yang memiliki warna-warni yang berubah-ubah karena difraksi cahaya. Opal memiliki berbagai varietas, seperti Opal-AG, Opal-AN, Opal-CT, dan Opal-C, yang berbeda dalam struktur dan komposisi kimianya. Situs mindat.org menyediakan informasi lengkap dan terpercaya tentang opal, …

Specific Gravity: 6.98 - 7.01. Crystal System: Tetragonal. Member of: Rutile Group. Name: The mineral name is derived from the term “Cassiterides” which was applied to 'islands off the western coast of Europe' in pre-Roman times. The exact location of these 'islands' has been hotly debated over the years.

About Grandidierite Hide. Named by A. Lacroix in 1902 in honor of Alfred Grandidier (20 December 1836, Paris, France - 13 September 1912, Paris, France), French explorer and naturalist. He visited Madagascar three times between … 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. Link to MinDat.org Location Data. Name Origin: Named after its chemical composition. Synonym: Chrome iron ore : Chromic iron : Ferrichromite - magnetic, …Selenite is a transparent variety of gypsum, a common mineral with many uses and applications. Learn more about its properties, localities and associations at Mindat.org, the largest and most comprehensive mineral database and reference website on the internet.mindat.org an online mineralogical reference and locality resource for collectors and mineralogy students worldwide MINER MINER est un produit développé en …mindat.org

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 …WNYC.org, the online platform for New York City’s premier public radio station, is dedicated to providing high-quality journalism, in-depth reporting, and thought-provoking program...Name: For the elements calcium, vanadium, and silicon in the composition. Type Locality: ⓘ Owyhee Dam, Lake Owyhee State Park, Malheur County, Oregon, USA. Dimorph of: Pentagonite. Ishida et al. (2009) suggest that cavansite is a low-temperature form and pentagonite a high-temperature form. To distinguish pentagonite and cavansite one can ...Internet Links for GirvasiteHide · mindat.org URL: https://www.mindat.org/min-1700.html. Please feel free to link to this page. · Search Engines: Look for ...Spodumene is a lithium-bearing mineral that occurs in granitic pegmatites and some metamorphic rocks. It is a source of lithium and a gemstone with various colors. Learn more about its properties, occurrence, and uses at mindat.org, the largest mineral database and reference website on the internet.

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Mindat Fellows 2023. 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. Using the mindat catalogue is very easy. All you have to do is to register on mindat.org, log in and click on your 'Home Page' button. Then select the 'My Catalogue' tab as below: This will open up the page for Your Collection. Add a new entry by clicking the button labelled in yellow on the screen grab below: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.Marialite-Na adalah mineral dari kelompok scapolite, yang memiliki kandungan natrium dan klorin yang tinggi. Mineral ini ditemukan di beberapa lokasi di dunia, termasuk Italia, Kanada, dan Tanzania. Informasi lebih lanjut tentang sifat dan data mineral Marialite-Na dapat dilihat di mindat.org, situs web terkemuka tentang …“As Christians, we believe that we have been given responsibility over every little thing on this planet.” When evangelical environmentalists talk about climate change, they don’t ...mindat.orgMindat.org - Mines, Minerals and MoreName in honor of Arie Poldervaart (6 July 1918, Bandung, Indonesia – 28 October 1964, Manhattan, New York, USA), petrologist at Columbia University, New York. He made important contributions to the understanding of the South African Karoo dolerites and Archean rocks in the Kakamas area of northwest Cape Province.Specific Gravity: 5.246 - 5.505. Crystal System: Monoclinic. Member of: Coronadite Group > Hollandite Supergroup. Name: Named in 1905 by Waldemar Lindgren in recognition of Francisco Vasquez de Coronado [1510 Salamanca, Spain - September 22, 1554, Mexico City, Mexico], a Spanish conquistador and explorer of the American southwest. Type …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...

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 ...

The most simple Ce mineral known. Cerianite generally forms as an oxidation product of Ce 3+ -bearing minerals. Formation under hydrothermal oxidative conditions is rare. One of three currently recognized minerals with tetravalent cerium, beside dyrnaesite- (La) and stetindite. May be non-stoichiometric and bear some Ce (III) and vacancies.

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. mindat.orgMindat.org - Mines, Minerals and More Search for Minerals in a Country/Top Level Administrative Region. Enter a mineral name (eg Almandine ), and select a country/top level administrative region and this search will find all localities within the region containing that mineral. Mineral Name: Region: - Please Select - 162173 Ryugu Aegean Sea Plate Afghanistan African Plate Akrotiri ... 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...Associated Minerals Based on Photo Data: 66 photos of Demantoid associated with Amphibole Supergroup. AB2C5( (Si,Al,Ti)8O22) (OH,F,Cl,O)2. 55 photos of Demantoid associated with Quartz. SiO2. 37 photos of Demantoid associated with Asbestos. 21 photos of Demantoid associated with Chrysotile. Mg3(Si2O5) (OH)4.Mindat.org is an outreach program of the Hudson Institute of Mineralogy, a 501 (c) (3) not-for-profit organization based in the United States as an entity dedicated to the discovery, study, and preservation of mineral species and their history, and to increasing public awareness and appreciation of the mineral kingdom through …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.Currently used as a field-term unidentified massive hydroxides and oxides of iron, with no visible crystals, and a yellow-brown streak. 'Limonite' is most commonly the mineral species goethite, but can also consist of varying proportions of lepidocrocite, hematite and/or maghemite, along with impurities of other minerals such as quartz and clay s.

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 …The official website of The Church of Jesus Christ of Latter-day Saints, commonly known as LDS.org, is a treasure trove of information and resources for members and non-members ali...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 ...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 ...Instagram:https://instagram. taylorswift com tourthomas and friends motorized wikisexy step sister stuckmassage handjob gif An apatite with 3.18% rare earth elements (REE) and 1.33% Ce2O3 from the Kola Peninsula. Originally reported from Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Collophane. A name used for the massive, cryptocrystalline, colloidal (amorphous) varieties of Carbonate-rich Fluorapatite or Carbonate-rich …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 … yogoprodeckwhat times 5 equals 100 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.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. you're losing me download A rhodian variety of Gold. Gold containing 34 to 43 weight percent Rh has been reported from Columbia & Mexico, but not confirmed. Silver- and mercury-bearing Gold. A variety of gold, containing up to 31 weight percent of silver and up to 15 weight percent of mercury. Compare also Unnamed (Ag-Au Amalgam). 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 … Originally described in the 19th century from the Slyudyanka phlogopite mines area, Lake Baikal, Irkutskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia. Blue Diopside. Usually granular diopside forming monomineral zones in magnesium skarns in some regions of Prebaikalie.