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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Ullmannite from
S'Acqua is Prunas Mine (Acqua is Prunas Mine), Gonnosfanadiga, South Sardinia Province, Sardinia, Italy


Locality type:Mine
Classification
Species:Ullmannite
Formula:NiSbS
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Ullmannite data
Locality Data:Click here to view S'Acqua is Prunas Mine (Acqua is Prunas Mine), Gonnosfanadiga, South Sardinia Province, Sardinia, Italy
Data Identifiers
Mindat Occurrence Record ID:422259
Long-form Identifier:1:3:422259:0
GUID (UUID V4):0
Nearest other occurrences of Ullmannite
1.5km (0.9 miles) ⓘPira Inferida, Fenugu Sibiri Mine, Gonnosfanadiga, South Sardinia Province, Sardinia, Italy
5.5km (3.4 miles) ⓘNieddoris Mine, Arbus, South Sardinia Province, Sardinia, Italy
8.9km (5.5 miles) ⓘIngurtosu Mine, Arbus, South Sardinia Province, Sardinia, Italy
76.2km (47.3 miles) ⓘS'Arcilloni Mine, Burcei, South Sardinia Province, Sardinia, Italy
80.2km (49.8 miles) ⓘMasaloni Mine, San Vito, South Sardinia Province, Sardinia, Italy
82.1km (51.0 miles) ⓘGiovanni Bonu Mine, San Vito, South Sardinia Province, Sardinia, Italy
82.7km (51.4 miles) ⓘMonte Narba Mine, San Vito, South Sardinia Province, Sardinia, Italy
87.1km (54.1 miles) ⓘBacu Arrodas Mine (Baccu Arrodas Mine; Bacu Arrodas-S'Arrexini Mine), Muravera, South Sardinia Province, Sardinia, Italy
References
doi.org (n.d.) https://doi.org/10.3390/min9070429
Stara, P., Rizzo, R., Tanca, G.A. (1996): Iglesiente e Arburese. Miniere e Minerali. Edito a cura dell'EMSA e "varie associazioni mineralogiche", Volume 2°, 239 pp.
Moroni, Marilena, Rossetti, Piergiorgio, Naitza, Stefano, Magnani, Lorenzo, Ruggieri, Giovanni, Aquino, Andrea, Tartarotti, Paola, Franklin, Andrea, Ferrari, Elena, Castelli, Daniele, Oggiano, Giacomo, Secchi, Francesco (2019) Factors Controlling Hydrothermal Nickel and Cobalt Mineralization—Some Suggestions from Historical Ore Deposits in Italy. Minerals, 9 (7) 429 doi:10.3390/min9070429
 
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