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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Siderogel from
Slag dumps, Severinggraben, Johnsbach, Admont, Liezen District, Styria, Austria


06052960017369017627126.jpg
Siderogel

Slag dumps, Severinggraben, Johnsbach, Admont, Liezen District, Styria, Austria
06052960017369017627126.jpg
Siderogel

Slag dumps, Severinggraben, Johnsbach, Admont, Liezen District, Styria, Austria
07294900017271926691851.jpg
Siderogel

Slag dumps, Severinggraben, Johnsbach, Admont, Liezen District, Styria, Austria
Locality type:Mine Dump
Classification
Species:'Siderogel' (not an IMA approved species)
Formula:~FeO(OH) · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Siderogel data
Locality Data:Click here to view Slag dumps, Severinggraben, Johnsbach, Admont, Liezen District, Styria, Austria
Data Identifiers
Mindat Occurrence Record ID:782801
Long-form Identifier:1:3:782801:0
GUID (UUID V4):0
References
Neschen, Peter (n.d.) Personal communication.
Nieding, E. (1985) Rezente Mineralbildungen in urzeitlichen Kupferschlacken aus Österreich. Aufschluss: 36: 313–318. (in German)
 
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