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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Gypsum from
Podere Montevecchio (Podere Montevecchio Mine; Miniera della Sambuca), Gerfalco, Montieri, Grosseto Province, Tuscany, Italy


Locality type:Mine
Classification
Species:Gypsum
Formula:CaSO4 · 2H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Gypsum data
Locality Data:Click here to view Podere Montevecchio (Podere Montevecchio Mine; Miniera della Sambuca), Gerfalco, Montieri, Grosseto Province, Tuscany, Italy
Data Identifiers
Mindat Occurrence Record ID:916205
Long-form Identifier:1:3:916205:1
GUID (UUID V4):0
Nearest other occurrences of Gypsum
7.4km (4.6 miles) ⓘBoccheggiano mines, Montieri, Grosseto Province, Tuscany, Italy
7.8km (4.9 miles) ⓘNiccioleta Mine, Massa Marittima, Grosseto Province, Tuscany, Italy
9.3km (5.8 miles) ⓘClay quarry, Chiusdino, Siena Province, Tuscany, Italy
10.4km (6.5 miles) ⓘCretaio, Prata, Massa Marittima, Grosseto Province, Tuscany, Italy
12.5km (7.8 miles) ⓘCastellaccia Mine, Montoccoli-Castellaccia area (Fosso Zanca-Filone di Montoccoli area; Zanca Valley mines), Massa Marittima, Grosseto Province, Tuscany, Italy
16.1km (10.0 miles) ⓘFenice Capanne Mine, Massa Marittima, Grosseto Province, Tuscany, Italy
16.6km (10.3 miles) ⓘSerrabottini, Massa Marittima, Grosseto Province, Tuscany, Italy
17.3km (10.8 miles) ⓘLe Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy
17.3km (10.8 miles) ⓘCamporedaldi Mine (La Minierina), Chiusdino, Siena Province, Tuscany, Italy
17.8km (11.0 miles) ⓘAccesa mine, Massa Marittima, Grosseto Province, Tuscany, Italy
References
Bazzoni, C., and Capperi, M. (2001) La miniera di «Montevecchio» in Toscana (Gerfalco - Grosseto). Rivista Mineralogica Italiana, 25, 4 (4-2001), 236-241.
 
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