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Name 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.
mindat.orgThe "mindat.org" link connects to the mindat data page for the current species. Most mineral species pages also have a link to a gallery of specimen photos from …HelpForgottenJews.org is a non-profit organization that aims to provide aid and support to Jewish communities around the world who have been forgotten or neglected. If you are inte...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 ...
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.
mindat.orgNorth Carolina (/ˌkærəˈlaɪnə/, KARR-ə-LY-nə) is a state in the Southeastern region of the United States. The state is the 28th-largest and 9th-most populous of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, Georgia and South Carolina to the south, and Tennessee to the west.
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 …In today’s digital age, accessing your healthcare information online has become more convenient and efficient than ever before. With KP.org, Kaiser Permanente’s online portal, pati...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. 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 ...
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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 …
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.org - Mines, Minerals and More Nearest Localities. This tool can help you search for nearby mineral localities. Please note that if you are running from a device without GPS (eg a normal computer or laptop) the 'Get my current location' option may either not work at all or give wildly inaccurate results. Please remember the 'Get my current location' option will, on a ... 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...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...Crystal System: Triclinic. Member of: Aenigmatite Group > Sapphirine Supergroup. Name: From the Greek αίνιγμα ("aenigma"), "a riddle", alluding to the enigmatic, uncertain chemical composition of the mineral. Named in 1865 by Breithaupt. Co-Type Localities:
La labradorite est un minéral qui peut présenter un effet optique iridescent (ou schiller) appelé labradorescence. Ce phénomène est dû à une structure lamellaire causée par un processus d'exsolution lié à un écart de miscibilité. L'effet est visible lorsque la séparation lamellaire est comprise entre 128 et 252 nm. Découvrez les propriétés, les données et …Registration is required to post to the messageboard (text and photos), but you DO NOT have to request activation to post messages and photos to the Discussions ...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.In today’s digital age, accessing your healthcare information online has become more convenient and efficient than ever before. With KP.org, Kaiser Permanente’s online portal, pati...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 …Name: From the Greek αξίνα ("axina") for "axe", in allusion to the common habit of its crystals. Synonym: A synonym of Axinite Group. Localities listed here are where only 'axinite' is given as a reference. Most, but not all, 'axinite' is axinite- (Fe), i.e., the Fe-dominant member within the Axinite Group.
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There are currently 6,017 approved mineral species listed on mindat.org. What is a mineral? (for the longer answer, read this article) The IMA ( International Mineralogical Association) defined it as: "A mineral is an element or a chemical compound that is normally crystalline and that has been formed as a result of geological processes." 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.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.Adularia is a potassium-rich feldspar mineral that forms in low-temperature environments. It has a characteristic pearly or opalescent luster and can be found in many localities around the world. Learn more about its properties, occurrence and uses at mindat.org, the largest mineral database and reference website on the …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 ...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 …Sphalerite Group. Sphalerite, also known as blende or zinc blende, is the major ore of zinc. When pure (with little or no iron) it forms clear to white crystals (known as Cleiophane ). Yellow to orange sphalerite is often called "golden sphalerite." Red shades of sphalerite are known as Ruby Blende or Ruby Jack.
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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 ...
Common Associates Hide. Associated Minerals Based on Photo Data: 20 photos of Fassaite associated with Pleonaste. (Mg,Fe)Al2O4. 17 photos of Fassaite associated with Vesuvianite. Ca19Fe3+Al4(Al6Mg2) ( 4) [Si2O7]4[ (SiO4)10]O (OH)9. 12 photos of Fassaite associated with Calcite. CaCO3. This database contains worldwide information on minerals, mineral localities and other mineralogical information. In part supported by advertising, it …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.Name: From the Greek κύλιυδροσ, a roll, in allusion to the typical cylindrical habit of the mineral. Type Locality: ⓘ Santa Cruz Mine, Poopó, Poopó Province, Oruro, Bolivia. Cylindrite Group. There is a relation between the cylindrical morphology and crystal structure. The latter is composite and characterizes in incommensurate ...Name: Named in 1852 by Johann Friedrich August Breithaupt for the type locality, Barranco Jaroso in southern Spain. Type Locality: ⓘ Jaroso Ravine, Sierra Almagrera, Cuevas del Almanzora, Almería, Andalusia, Spain. The most common member of the alunite supergroup. The Fe (III) analogue of alunite.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.Bournonite is a complex sulfide mineral of lead, antimony and copper, often found in Cornwall, England. It has a distinctive cogwheel shape and metallic luster. Learn more about its properties, occurrence and uses at mindat.org, the largest mineral database and reference website on the internet.View from mars rover ... NASA's Mars Perseverance rover acquired this image using its Right Mastcam-Z camera. Mastcam-Z is a pair of cameras located high on the ...
Specimen 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 …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 ...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 ...Instagram:https://instagram. how late is chase open todayross store manager payregency funeral home arkansastiffany adventure time wiki View from mars rover ... NASA's Mars Perseverance rover acquired this image using its Right Mastcam-Z camera. Mastcam-Z is a pair of cameras located high on the ...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. iup academic calendaraaa car care coupons oil change Bournonite is a complex sulfide mineral of lead, antimony and copper, often found in Cornwall, England. It has a distinctive cogwheel shape and metallic luster. Learn …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. wiki gene wilder Adularia is a potassium-rich feldspar mineral that forms in low-temperature environments. It has a characteristic pearly or opalescent luster and can be found in many localities around the world. Learn more about its properties, occurrence and uses at mindat.org, the largest mineral database and reference website on the …mindat.org