Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Clinoferrosilite from
Unspecified Clinoferrosilite occurrence [1], Inyo County, California, USA


Locality type:Occurrence
Classification
Species:Clinoferrosilite
Formula:Fe22+Si2O6
Comments:Occurs as needles in lithophysae in obsidian.
Habit:Acicular
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Obsidian
Data
Mineral Data:Click here to view Clinoferrosilite data
Locality Data:Click here to view Unspecified Clinoferrosilite occurrence [1], Inyo County, California, USA
Data Identifiers
Mindat Occurrence Record ID:666772
Long-form Identifier:1:3:666772:6
GUID (UUID V4):0
References
Bowen, N.L. (1935), Ferrosilite as a natural mineral: American Journal of Science, 5th. Series: 30: 481 (491 ?)
Bradley, W.W. (1940), Thirty-sixth report of the State Mineralogist: California Division Mines Report 36: 107
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 307
 
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