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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Chalcedony from
Farm Eichner, St. Ulrich bei Steyr, Steyr-Land District, Upper Austria, Austria


08477770017362045968965.jpg
Chalcedony

Farm Eichner, St. Ulrich bei Steyr, Steyr-Land District, Upper Austria, Austria
08477770017362045968965.jpg
Chalcedony

Farm Eichner, St. Ulrich bei Steyr, Steyr-Land District, Upper Austria, Austria
09722340017272084783852.jpg
Chalcedony

Farm Eichner, St. Ulrich bei Steyr, Steyr-Land District, Upper Austria, Austria
Classification
Species:Quartz var: Chalcedony
Formula:SiO2
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view Farm Eichner, St. Ulrich bei Steyr, Steyr-Land District, Upper Austria, Austria
Data Identifiers
Mindat Occurrence Record ID:773168
Long-form Identifier:1:3:773168:6
GUID (UUID V4):0
References
Neschen, Peter (n.d.) Personal communication.
 
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