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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 :
It was recognized as a species since about 1890. By far the best locality for specimens appears to be the Herja mine in Romania. 3.5 x 2.3 x 1.8 cm. Cronstedtite is a rare iron silicate of the serpentine group. This very rich and showy little specimen is festooned with lustrous, black, trigonal crystals to 3 mm on a 3-dimensional crust of matrix. It is a rare occurrence to have such a rich coverage of cronstedtite, and this specimen displays very well. This is a classic Cronstedtite-1M mineral data, information about Cronstedtite-1M, its properties and worldwide locations.
Locality: Pribram and Kuttenberg, Bohemia of Czechoslovakia. Link to MinDat.org Location Data. Name Origin: Named for Axel Fredrik Cronstedt (1722-1765), Swedish mineralogist and chemist. Name Pronunciation: Cronstedtite + Pronunciation. Cronstedtite-2H2 mineral data, information about Cronstedtite-2H2, its properties and worldwide locations.
Name Origin: Named for Julien Jean Joseph Fraipont (1857-1910), 09.ED.15 Cronstedtite Fe2Fe(SiFe)O5(OH)4 P 3 1 m 3m : 71.01.02c.07 Cronstedtite Fe2Fe(SiFe)O5(OH)4 P 3 1 m 3m : Strunz Class: 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas The Carbon Mineral Challenge. From December 2015 to September 2019 the Carbon Mineral Challenge set the stage for both professional and amateur mineral collectors to make their mark by discovering never-before described minerals.
An introduction to the rock-forming minerals (pp. 498). Mineralogical Society of Great Britain and Ireland, London. mindat.org – The Mineral Database.
I donated this specimen to the National Museum in Prague, Czech Republic. Mindat - search for: Cronstedtite-3T Webmineral - search for:Cronstedtite-3T Handbook-of-Mineralogy - search for: Cronstedtite-3T RRUFF - Raman, XRD and other mineral data - search for: Cronstedtite-3T RRUFF - References and PDF downloads - search for: Cronstedtite-3T American-Mineralogist-Crystal-Structure-Database - search for: Cronstedtite Classification Strunz class silicates (09) Strunz division phyllosilicate (09.E) Strunz family Phyllosilicates with kaolinite layers (09.ED) Strunz code Improving Mindat.org Cronstedtite trigonal!? 3rd Jan 2010 20:16 UTC Emil Box. Cronstedtite is trigonal instead of hexagonal.
La cronstedtita és un mineral de la classe dels silicats que pertany al grup de la caolinita-serpentina.Va ser anomenada en honor de Axel Fredrik Cronstedt (1722-1765), químic i mineralogista suec que va descobrir el níquel, la scheelita i va establir el terme zeolita.. Característiques. La cronstedtita és un silicat de fórmula química (Fe 2 2+ Fe 3+)(Si,Fe 3+) 2 O 5 (OH) 4.
3rd Jan 2010 21:23 UTC Rob Woodside Cronstedtite Specimen ID: UHE-DL7. Mineral(s) Cronstedtite: Fe 2+ 2 Fe 3+ ((Si,Fe 3+) 2 O 5)(OH) 4. Locality.
3rd Jan 2010 21:23 UTC Rob Woodside
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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. This and many more mineral specimens are available for sale at Dakota Matrix Minerals. Cronstedtite - The face of this specimen is covered with jet black, highly lustrous, tiny (less than 0.5mm) Cronstedtite crystals associated with tiny discoidal Siderite crystals with inclusions of possible Boulangerite. .
Link to MinDat.org Location Data. Name Origin: Named for Julien Jean Joseph Fraipont (1857-1910), 09.ED.15 Cronstedtite Fe2Fe(SiFe)O5(OH)4 P 3 1 m 3m :
71.01.02c.07 Cronstedtite Fe2Fe(SiFe)O5(OH)4 P 3 1 m 3m : Strunz Class: 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas
The Carbon Mineral Challenge. From December 2015 to September 2019 the Carbon Mineral Challenge set the stage for both professional and amateur mineral collectors to make their mark by discovering never-before described minerals.
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1 Nov 2004 211.500. 7A-Cronstedtite. Fe++. 2Fe+++ 7A-Cronstedtite. Fe2Fe2SiO5(OH)4 URL: http://www.mindat.org/min-7105.html. 172416. Ransom
71.01.02c.07 Cronstedtite Fe2Fe(SiFe)O5(OH)4 P 3 1 m 3m : Strunz Class: 09.ED.15 09 - SILICATES (Germanates) 09.E - Phyllosilicates 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.