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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Balkanite from
San Giovanni Mine, Bindua, Iglesias, South Sardinia Province, Sardinia, Italy


01654090017365298497770.jpg
Balkanite, etc.

San Giovanni Mine, Bindua, Iglesias, South Sardinia Province, Sardinia, Italy
01654090017365298497770.jpg
Balkanite, etc.

San Giovanni Mine, Bindua, Iglesias, South Sardinia Province, Sardinia, Italy
03376360017271921285081.jpg
Balkanite, etc.

San Giovanni Mine, Bindua, Iglesias, South Sardinia Province, Sardinia, Italy
Locality type:Mine
Classification
Species:Balkanite
Formula:Cu9Ag5HgS8
Comments:xls up to 1 mm.
Habit:striated, prismatic xls
Colour:dark grey
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
SEM-EDS
Associated Minerals:
Associates:Cinnabar
Jalpaite
Native Silver
Tetrahedrite Subgroup
Associated Minerals Based on Photo Data:
Dolomite1
Data
Mineral Data:Click here to view Balkanite data
Locality Data:Click here to view San Giovanni Mine, Bindua, Iglesias, South Sardinia Province, Sardinia, Italy
Data Identifiers
Mindat Occurrence Record ID:347148
Long-form Identifier:1:3:347148:7
GUID (UUID V4):0
References
Orlandi, P. & Campostrini, I. (2005): Zibaldone. Aggiornamenti di mineralogia italiana 2004. Rivista Mineralogica Italiana, 3/2005, 184-191.
 
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