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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Montmorillonite from
Bottino Mine, Stazzema, Lucca Province, Tuscany, Italy


Locality type:Mine
Classification
Species:Montmorillonite
Formula:(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Montmorillonite data
Locality Data:Click here to view Bottino Mine, Stazzema, Lucca Province, Tuscany, Italy
Data Identifiers
Mindat Occurrence Record ID:83390
Long-form Identifier:1:3:83390:3
GUID (UUID V4):0
Nearest other occurrences of Montmorillonite
49.6km (30.8 miles) ⓘCerchiara Mine, Borghetto di Vara, La Spezia Province, Liguria, Italy
64.0km (39.8 miles) ⓘMassaccio Mine, Castiglioncello, Rosignano Marittimo, Livorno Province, Tuscany, Italy
73.4km (45.6 miles) ⓘLibiola Mine, Sestri Levante, Genoa, Liguria, Italy
74.9km (46.6 miles) ⓘMolinello Mine, Ne, Genoa, Liguria, Italy
76.4km (47.5 miles) ⓘGambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy
89.0km (55.3 miles) ⓘMicciano, Pomarance, Pisa Province, Tuscany, Italy
References
Benvenuti, M., Mascaro, I., Corsini, F., Ferrari, M., Lattanzi, P., Parrini, P., Costagliola, P., Taneli, G. (2000) Environmental mineralogy and geochemistry of waste dumps at the Pb(Zn)-Ag Bottino mine, Apuane Alps, Italy. European Journal of Mineralogy: 12(2): 441-453.
 
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