ED.15 Cronstedtite Fe++2Fe+++(SiFe+++)O5(OH)4. Space Group P 31m Liens externes. (en) « Greenalite », sur Mindat; (en) « Greenalite », sur Webmin.

Cronstedtite was confirmed by PXRD, SXRD and EMPA-WDS. Collected on the 9th level of the San Antonio mine in 2017. I donated this specimen to the National Museum in Prague, Czech Republic.

It is a rare occurrence to have such a rich coverage of Cronstedtite, and this specimen displays very well. Cronstedtite-3T mineral data, information about Cronstedtite-3T, its properties and worldwide locations. Mindat.org is an outreach project of the Hudson Institute Ask about Cronstedtite here : Ask-A-Mineralogist from the Mineralogical Society of America Mindat.org's Discussion Groups Original Rockhounds Discussion Group Rockhounds Discussion Group on Yahoo Groups Mineral Discussion Forum from Fabre Minerals - also available in Español. Print or Cut-and-Paste your Cronstedtite Specimen Label here : Name: Named by Josef Johann Steinmann in 1821 in honor of Axel Fredrik Cronstedt (1722-1765), Swedish chemist and mineralogist who discovered nickel, scheelite and coined the term zeolite. Cronstedt's mineralogical books revolutionized mineralogy and he is sometimes regarded as the father of modern mineralogy. Cronstedtite is a major constituent of CM chondrites, a carbonaceous chondrite group exhibiting varying degrees of aqueous alteration.

Cronstedtite is a rare iron silicate of the serpentine group. Mindat.org's Discussion Groups Original Rockhounds Discussion Group Rockhounds Discussion Group on Yahoo Groups Mineral Discussion Forum from Fabre Minerals - also available in Español. Print or Cut-and-Paste your Pecoraite Specimen Label here : Cronstedtite: | | | Cronstedtite | | | | ||| World Heritage Encyclopedia, the aggregation of the largest online encyclopedias available, and the most definitive Mindat.org's Discussion Groups Original Rockhounds Discussion Group Rockhounds Discussion Group on Yahoo Groups Mineral Discussion Forum from Fabre Minerals - also available in Español. Print or Cut-and-Paste your Greenalite Specimen Label here : Mindat.org's Discussion Groups Original Rockhounds Discussion Group Rockhounds Discussion Group on Yahoo Groups Mineral Discussion Forum from Fabre Minerals - also available in Español. Print or Cut-and-Paste your Fraipontite Specimen Label here : English: Cronstedtite Locality: Herja Mine (Kisbánya), Baia Mare (Nagybánya), Maramures County, Romania (Locality at mindat.org) A rich crust covered with sharp, lustrous , fat crystals to 2-3 mm in size, makes this a very fine miniature of this classic rarity (a complex iron silicate with multiple oxidation states of iron in the same crystal). Mindat.org's Discussion Groups Original Rockhounds Discussion Group Rockhounds Discussion Group on Yahoo Groups Mineral Discussion Forum from Fabre Minerals - also available in Español.

It is available at: www.wiregrassrockhounds.com. Additional Minerals of Talladega County. In addition to calcite, marble and pyrite, the www.mindat.org website

By far the best locality for specimens appears to be the Herja mine in Romania. Superb coverage of trigonal Cronstedtite crystals, an rare Iron Silicate.

Mindat.org's Discussion Groups Original Rockhounds Discussion Group Rockhounds Discussion Group on Yahoo Groups Mineral Discussion Forum from Fabre Minerals - also available in Español. Print or Cut-and-Paste your Greenalite Specimen Label here :

Euru | 504-319 Phone Numbers | Kenner, Louisiana Minda Herbig. 215-780-5203. Zofia Pallares. 215-780-4866 Cronstedtite Personeriadistritaldesantamarta. 804-921-1891 817-792 Phone Numbers in Minda Nein. 804-921-7225.

I donated this specimen to the National Museum in Prague, Czech Republic. Mineral Data, Mineralienatlas Lexikon, Cronstedtit-6R2. CHARLES A. GEIGER, DIANE L. HENRY, AND S. W. BAILEY - CRYSTAL STRUCTURE OF CRONSTEDTITE-2H2 - Clays and Clay Mindat - search for: Cronstedtite-6R2 Webmineral - search for:Cronstedtite-6R2 Handbook-of-Mineralogy - search for: Cronstedtite-6R2 RRUFF - Raman, XRD and other mineral data - search for: Cronstedtite-6R2 RRUFF - References and PDF downloads - search for: Cronstedtite-6R2 American-Mineralogist-Crystal-Structure-Database - search for Named for Axel Fredrik Cronstedt, Swedish mineralogist and chemist. Cronstedtite is an uncommon mineral that occurs as a hydrothermal product in ore veins in localities in the Czech Republic, Romanis, Germany, France, England, the United States, Mexico, Brazil, and Bolivia, among other minor localities. Mindat ProductsOpen discussion area.
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Its chemical formula is Fe 2+ 2 Fe 3+ (Si,Fe 3+ O 5)(OH) 4.

IMA Status: Valid Species (Pre-IMA) 1821. Locality: Pribram and Kuttenberg, Bohemia of Czechoslovakia. Link to MinDat.org Location Data.
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Mindat - Cronstedtite; Media in category "Cronstedtite" The following 10 files are in this category, out of 10 total. Cronstedite France.jpg 3,710 × 2,383; 6.62 MB.

Cronstedtite, Krupka, district Teplice, region Ústecký kraj, Northern Bohemia, Czech Republic. Black CrystalsCzech The Mineral Evolution Database (http://rruff.info/ima/), in association with mindat ( https://www.mindat.org), combines spatial (locality) with temporal (age) data for Cronstedtite (Fe 2+ , Fe 3+ ) 3 (Si, Fe 3+ ) 2 O 5 (OH) 4; Fraipontite (Zn, Al) 3 (Si, Find location list for serpentines in the Mineralienatlas and Mindat ( accessed corundum, cosalite, covellite, crandallite, cristobalite, crocoite, cronstedtite, Ralph J. & Ralph I., 1993-2009: Mindat.org. http://www.mindat.org/min-872.html. mindat.org (Ralph and Chau, 2012) and webmineral.com. (Barthelmy Amesite, Antigorite, Berthierine, Brindleyite, Caryopilite, Chrysotile, Cronstedtite,. Dickite Brian Kosnar's Mindat Home Page. My Page, My Photos.