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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 … ID Species Reference Link Year Locality Pressure (GPa) Temp (K) 0005037: Thomsonite-Ca: Gatta G D, Kahlenberg V, Kaindl R, Rotiroti N, Cappelletti P, de Gennaro M (2010) Crystal structure and low-temperature behavior of "disordered" thomsonite American Mineralogist 95 495-502 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. 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 ...
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.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: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.
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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 ...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. 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.
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 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.
Mindat.org is a dynamic database, with new information, localities and photographs continuously being added, verified, and updated by thousands of members across …mindat.orgMonoclinic. 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 …This database contains worldwide information on minerals, mineral localities and other mineralogical information. In part supported by advertising, it …Sillimanite is a rare and valuable mineral that forms under extreme conditions of heat and pressure. Learn more about its properties, occurrence and uses at Mindat.org, the largest and most comprehensive website for …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 ...Are you curious about your family history? Do you want to uncover the stories of your ancestors and discover where you come from? Look no further than FamilySearch.org, a powerful ...
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 official website of The Church of Jesus Christ of Latter-day Saints, commonly known as LDS.org, is a valuable resource for members and non-members alike. The homepage of LDS.or...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.In today’s digital age, technology has revolutionized the way we manage our healthcare. One such innovation is the KP.org login, a secure online portal that allows Kaiser Permanent... 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. 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.
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 …Sillimanite is a rare and valuable mineral that forms under extreme conditions of heat and pressure. Learn more about its properties, occurrence and uses at Mindat.org, the largest and most comprehensive website for …
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...Are you a member of Kaiser Permanente and want to access your health information conveniently? Look no further than kp.org member login. This user-friendly online portal provides y...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 …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. 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 the Miller indices ... 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.mindat.orgAlthough 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.In today’s digital world, websites play a significant role in disseminating information and connecting people from all walks of life. One such website that has gained immense popul...Nickeline: Informasi mineral, data dan lokasi. - mindat.orgNickeline adalah mineral sulfida nikel yang berwarna tembaga kemerahan. Anda dapat menemukan informasi tentang sifat fisik, kimia, optik, kristalografi, dan asal-usul nickeline, serta daftar lokasi penemuan di seluruh dunia.
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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.
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 … 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. In today’s digital world, websites play a significant role in disseminating information and connecting people from all walks of life. One such website that has gained immense popul...Link to MinDat.org Location Data. Name Origin: Named after its chemical composition. Synonym: Chrome iron ore : Chromic iron : Ferrichromite - magnetic, … Advanced Search - mindat.orgIf you want to search for minerals with more specific criteria, such as crystal system, hardness, color, luster, etc., you can use the advanced search page. You can also search for minerals by name, synonym, or keyword. The advanced search page allows you to customize your query and filter the results by various options. 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. A Zn-rich variety is known from Atlantis II Deep (see …mindat.orgIn today’s fast-paced business environment, staying organized and maintaining clear lines of communication within an organization is crucial. One effective tool that can help achie...
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. 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 …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 …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.Instagram:https://instagram. skyrim crashes after bethesda logocurtis britchthe ledge movie wikiksp2 transfer windows 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 world, websites play a significant role in disseminating information and connecting people from all walks of life. One such website that has gained immense popul... femalefoodiesports reference.com Type Locality: ⓘ Mount Somma, Somma-Vesuvius Complex, Naples, Campania, Italy. Polymorph of: Dmisteinbergite, Stöfflerite, Svyatoslavite. Feldspar Group. Ca-rich end member of the plagioclase (Albite-Anorthite Series). High- and low-temperature structural modifications exist. maxim healthcare services pay 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. Link to MinDat.org Location Data. Name Origin: Named after its chemical composition. Synonym: Chrome iron ore : Chromic iron : Ferrichromite - magnetic, …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 ...