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|Colour:||Greenish brown to dark ...||Hardness:||3 - 3½|
|Name:||Named in 1951 by Alexander N. Winchell for a ferrian stilpnomelane, but sometimes mistaken as an attempt to rename ferric-dominant stilpnomelane.|
A variety of Stilpnomelane
Classification of Ferristilpnomelane
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Physical Properties of Ferristilpnomelane
|Diaphaneity (Transparency):||Transparent, Translucent|
|Colour:||Greenish brown to dark greenish brown or black|
|Streak:||Dark greenish brown|
|Hardness (Mohs):||3 - 3½|
Chemical Properties of Ferristilpnomelane
|Essential elements:||Fe, K, O, Si|
|All elements listed in formula:||Al, Fe, H, K, Mg, O, Si|
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Ferristilpnomelane
Winchell, Alexander N., 1951, Optical Mineralogy, fourth edition, part 2, p. 390.
Internet Links for Ferristilpnomelane
Localities for Ferristilpnomelane
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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Locality Updated: Doleritic lava flows, Reyran valley, Fréjus, Var, Provence-Alpes-Côte d'Azur, FranceFrom Pascal Chollet, 10th Dec 2013 21:43:38