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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Franklinite from
Garpenberg Norra Mine, Garpenberg, Hedemora, Dalarna County, Sweden


Locality type:Mine
Classification
Species:Franklinite
Formula:Zn2+Fe23+O4
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Rinmanite1
Data
Mineral Data:Click here to view Franklinite data
Locality Data:Click here to view Garpenberg Norra Mine, Garpenberg, Hedemora, Dalarna County, Sweden
Data Identifiers
Mindat Occurrence Record ID:53634
Long-form Identifier:1:3:53634:7
GUID (UUID V4):0
References
American Mineralogist, Volume 88, pages 251–255, 2003
Canadian Mineralogist (2001) 39 (6), 1675-1683
Holtstam, Dan (2001) Mineralfynd i Sverige 1999 och 2000 [Mineral discoveries in Sweden 1999 and 2000]. Geologiskt Forum, 8 (29). 23
Holtstam, Dan (2002) New occurrences of willemite-franklinite assemblages in Bergslagen, central Sweden. European Journal of Mineralogy, 14 (3) 621-626 doi:10.1127/0935-1221/2002/0014-0621
Zetterqvist, A. (2015) Skarn och skarnmineral i Zn-Pb-Ag-(Cu-Au)-gruvorna Garpenberg och Garpenberg Norra: Mineralkemi och förekomstsätt. Masters thesis, University of Stockholm.
 
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