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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Fibroferrite from
Cae Coch Mine, Trefriw, Conwy, Wales, UK


04448350017272020049673.jpg
Fibroferrite

Cae Coch Mine, Trefriw, Conwy, Wales, UK
04448350017272020049673.jpg
Fibroferrite

Cae Coch Mine, Trefriw, Conwy, Wales, UK
04448350017272020049673.jpg
Fibroferrite

Cae Coch Mine, Trefriw, Conwy, Wales, UK
Locality type:Mine
Classification
Species:Fibroferrite
Formula:Fe3+(SO4)(OH) · 5H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Fibroferrite data
Locality Data:Click here to view Cae Coch Mine, Trefriw, Conwy, Wales, UK
Data Identifiers
Mindat Occurrence Record ID:18478
Long-form Identifier:1:3:18478:2
GUID (UUID V4):0
References
BMS Collection
 
and/or  
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