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ATHENA MINERALOGY |
Mineral: | MONTMORILLONITE |
Formula: | (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2 · nH2O |
Crystal System: | Monoclinic |
Strunz Nr: | 8/H.19-20 |
Group: | Smectite group |
References: | HB2/2 (1995) |
Type Locality: | Montmorillon, Vienne, France |
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