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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Tennantite Subgroup from
Monte Santu Miali, Furtei mine, Furtei, South Sardinia Province, Sardinia, Italy


Locality type:Mountain
Classification
Species:'Tennantite Subgroup' (not an IMA approved species)
Formula:Cu6(Cu4C22+)As4S12S
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tennantite Subgroup data
Locality Data:Click here to view Monte Santu Miali, Furtei mine, Furtei, South Sardinia Province, Sardinia, Italy
Data Identifiers
Mindat Occurrence Record ID:601217
Long-form Identifier:1:3:601217:5
GUID (UUID V4):0
Nearest other occurrences of Tennantite Subgroup
36.6km (22.7 miles) ⓘIs Murvonis Mine, Domusnovas, South Sardinia Province, Sardinia, Italy
47.6km (29.6 miles) ⓘSan Pietro Mine, Monte Tamara mining area, Nuxis, South Sardinia Province, Sardinia, Italy
48.7km (30.3 miles) ⓘBaccu Locci Mine, Villaputzu, South Sardinia Province, Sardinia, Italy
49.0km (30.5 miles) ⓘSan Giovanni Mine, Bindua, Iglesias, South Sardinia Province, Sardinia, Italy
52.9km (32.9 miles) ⓘSan Giovanneddu Mine (S'Ega Porceddu), Gonnesa, South Sardinia Province, Sardinia, Italy
References
Ruggieri, Giovanni, Lattanzi, Pierfranco, Luxoro, Silvana S., Dessi, Roberto, Benvenuti, Marco, Tanelli, Giuseppe (1997) Geology, mineralogy, and fluid inclusion data of the Furtei high-sulfidation gold deposit, Sardinia, Italy. Economic Geology, 92 (1) 1-19 doi:10.2113/gsecongeo.92.1.1
 
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