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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Quartz from
Monte Calvi-North, San Vincenzo, Livorno Province, Tuscany, Italy


Locality type:Mountain
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Monte Calvi-North, San Vincenzo, Livorno Province, Tuscany, Italy
Data Identifiers
Mindat Occurrence Record ID:950384
Long-form Identifier:1:3:950384:7
GUID (UUID V4):0
Nearest other occurrences of Quartz
1.3km (0.8 miles) ⓘLanzi Mine (Cava del Piombo; Buca del Piombo), Campiglia Marittima, Livorno Province, Tuscany, Italy
2.3km (1.4 miles) ⓘTemperino Mine, Campiglia Marittima, Livorno Province, Tuscany, Italy
2.9km (1.8 miles) ⓘMadonna di Fucinaia (Madonna della Fucinaia) slag heaps, Campiglia Marittima, Livorno Province, Tuscany, Italy
3.4km (2.1 miles) ⓘMaffei Mine, Botro ai Marmi, Campiglia Marittima, Livorno Province, Tuscany, Italy
3.4km (2.1 miles) ⓘMontorsi Mine, Botro ai Marmi, Campiglia Marittima, Livorno Province, Tuscany, Italy
3.5km (2.2 miles) ⓘBuca Grande di Montorsi, Montorsi iron ore prospects (Monte Spinosa-North; Monte Spinosa iron deposit), Campiglia Marittima, Livorno Province, Tuscany, Italy
3.6km (2.2 miles) ⓘMontorsi iron ore prospects (Monte Spinosa-North; Monte Spinosa iron deposit), Campiglia Marittima, Livorno Province, Tuscany, Italy
4.7km (2.9 miles) ⓘBotro ai Marmi, Campiglia Marittima, Livorno Province, Tuscany, Italy
6.0km (3.7 miles) ⓘMonte Valerio, Campiglia Marittima, Livorno Province, Tuscany, Italy
11.7km (7.3 miles) ⓘFrassine, Monterotondo Marittimo, Grosseto Province, Tuscany, Italy
References
Nannoni R., Pistolesi M., Rossi R. (2012): Miniere e minerali di Campiglia Marittima. La Bancarella Editrice, Piombino (Livorno), 162 pp.
 
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