Montmorillonite with Quartz
SOLD
Montmorillonite with Quartz
- Sold
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- Availability
- Sold
- Size
- 8 x 6 x 3.5 cm - Sm Cabinet
- Formula
- (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O (RRUFF)
- Locality
- Newry Mica mine, Oxford Co., Maine, United States
Light pinkish clay mineral. Montmorillonite is a phyllosilicate and member of the smectite group. It is not a mica, and usually not confused as a mica, and is almost always in very fine aggregates. On a microscopic level you may see the basal cleavage confusing it with a mica.
Montmorillonite
- Formula
- (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O
- Crystal System
- Monoclinic
- Crystal Habit
- Earthy
- Cleavage
- Perfect, None, None
- Luster
- Earthy (Dull)
- Color
- white, gray white, yellow, brownish yellow, greenish yellow
- Streak
- white
- Class
- Monoclinic - Prismatic
- Fracture
- Earthy
- Hardness
- 1.5-2
Data courtesy of Webmineral.
- Collection
- Phillips Collection
- Mineralpedia
- View Montmorillonite
- On Dakota Matrix
- Previously Sold Montmorillonite
- On Dakota Matrix
- Other Available Montmorillonite
- WebMineral
- View Montmorillonite
- Mindat
- View Montmorillonite
