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PDF | We present the first detailed crystallo-chemical and crystallographic description of cronstedtite with extraterrestrial origin. The analysed | Find, read and cite all the research you SOREG15-149 Cronstedtite on Siderite (rare locale) Request Information Miniature, 5.2 x 4.1 x 2.2 cm Huanzala Mine, Dos de Mayo Province, Huanuco Department, Peru Cronstedtite Minerals. This gallery is part of the photographic archive of minerals. The minerals illustrated sold previously and are for photographic reference only.

Cronstedtite mineral data

Minerals & Varieties. View All Minerals; View by Alphabetical Order 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.

Some crystals of cronstedtite are covered partially by a honey-brown crust or small crystals of siderite.

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(Fig Preta – Brazílie. Výskyty v ČR, Příbram, Kutná Hora, Chvaletice, Litošice. Další informace, http://www.webmineral.com/data/Cronstedtite.shtml#.UIY6wmLE6Ck 6 Apr 2021 mineral composition, were presented. alongside more alkali minerals, since alkali is Cronstedtite: Mineral information, data and locali- ties.

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As hexagonal prisms, tapering toward one end and vertically striated. In divergent ¯brous groups; cylindroidal, reniform, massive. Twinning: Twin axis [001]; interpenetrating trigonal pyramids Cronstedtite.

American mineral collector and mineral dealer iRocks.com Fingerprint Dive into the research topics of 'Formation of brucite and cronstedtite-bearing mineral assemblages on Ceres'. Together they form a unique fingerprint. Sort by Weight Alphabetically IMA Status: Valid Species (Pre-IMA) 1821. 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.
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Comments: Pyramidal crystals of cronstedtite. Location: Santa Eulalia, Chihuahua, Mexico.

Hendricks S B (1939) Random structures of layer minerals as illustrated by cronstedtite (2FeO.Fe2O3.SiO2.2H2O). Possible iron content of kaolin American Mineralogist 24 529-539: 1939: 0: 293: 0007145: Cronstedtite: Hybler J (2006) Parallel intergrowths in cronstedtite-1T: determination of the degree of disorder European Journal of Mineralogy 18 197-205: 2006 Associated Minerals Based on Photo Data: (2000): Refinement of the crystal structure of cronstedtite-1T. Clays and Clay Minerals 48, 331-338.
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Data courtesy of Webmineral. Data consultation. Aqueous Cronstedtite is stable at low temperature in A generalized model for predicting the thermodynamic properties of clay minerals. Cronstedtite Formula (Fe 2+,Fe 3+) 3 (Si,Fe 3+) 2 O 5 (OH) 4 Crystal System Trigonal Crystal Habit Pyramidal, Divergent, Amorphous Cleavage Perfect, None, None Luster Vitreous - Resinous Color brownish black, greenish black, dark brown, black Streak dark olive green Class Trigonal - Ditrigonal Pyramidal Hardness 3.5 Cronstedtite is a complex iron silicate mineral belonging to the serpentine group of minerals.

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Possible iron content of kaolin American Mineralogist 24 529-539: 1939: 0: 293: 0007145: Cronstedtite: Hybler J (2006) Parallel intergrowths in cronstedtite-1T: determination of the degree of disorder European Journal of Mineralogy 18 197-205: 2006 Hendricks S B (1939) Random structures of layer minerals as illustrated by cronstedtite (2FeO.Fe2O3.SiO2.2H2O). Possible iron content of kaolin American Mineralogist 24 529-539: 1939: 0: 293: 0007145: Cronstedtite: Hybler J (2006) Parallel intergrowths in cronstedtite-1T: determination of the degree of disorder European Journal of Mineralogy 18 Cronstedtite Mineral Data General Cronstedtite Information. Silicon 7.03 % Si 15.04 % SiO 2 A low-temperature hydrothermal product in ore veins.

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Almost all rocks are made of minerals. The exceptions are obsidian (which is made of volcanic glass) and HudBay Minerals News: This is the News-site for the company HudBay Minerals on Markets Insider © 2021 Insider Inc. and finanzen.net GmbH (Imprint). All rights reserved. Registration on or use of this site constitutes acceptance of our Terms Monterey Minerals News: This is the News-site for the company Monterey Minerals on Markets Insider © 2021 Insider Inc. and finanzen.net GmbH (Imprint). All rights reserved. Registration on or use of this site constitutes acceptance of our T Find the latest historical data for Alianza Minerals Ltd (TARSF) at Nasdaq.com.

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.