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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Muscovite from
Accesa mine, Massa Marittima, Grosseto Province, Tuscany, Italy


Locality type:Mine
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Accesa mine, Massa Marittima, Grosseto Province, Tuscany, Italy
Data Identifiers
Mindat Occurrence Record ID:949232
Long-form Identifier:1:3:949232:5
GUID (UUID V4):0
Nearest other occurrences of Muscovite
8.5km (5.3 miles) ⓘGavorrano Mine, Gavorrano, Grosseto Province, Tuscany, Italy
15.4km (9.6 miles) ⓘBoccheggiano mines, Montieri, Grosseto Province, Tuscany, Italy
17.4km (10.8 miles) ⓘFrassine, Monterotondo Marittimo, Grosseto Province, Tuscany, Italy
17.8km (11.0 miles) ⓘPodere Montevecchio (Podere Montevecchio Mine; Miniera della Sambuca), Gerfalco, Montieri, Grosseto Province, Tuscany, Italy
27.1km (16.8 miles) ⓘMontorsi Mine, Botro ai Marmi, Campiglia Marittima, Livorno Province, Tuscany, Italy
32.3km (20.1 miles) ⓘPiombino Promontory, Piombino, Livorno Province, Tuscany, Italy
33.2km (20.6 miles) ⓘCotorniano quarry, Chiusdino, Siena Province, Tuscany, Italy
33.2km (20.6 miles) ⓘBagni di Petriolo (Terme di Petriolo), Monticiano, Siena Province, Tuscany, Italy
33.6km (20.9 miles) ⓘLe Cetine di Cotorniano mine, Chiusdino, Siena Province, Tuscany, Italy
34.4km (21.4 miles) ⓘLa Sassa carbonate vein, La Sassa, Montecatini Val di Cecina, Pisa Province, Tuscany, Italy
References
Dill, H. (1979) Lagerstättenkundliche Untersuchungen zur Entstehung der Pyrit-führenden Blei-Kupfer-Zink-Lagerstätte Accesa (SW-Toskana). Mineralium Deposita, 14 (1). 57-80 doi:10.1007/bf00201867
 
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