Anorthoclase
SOLD
Anorthoclase
- Sold
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- Availability
- Sold
- Size
- 5.5 x 3.5 x 3.5 cm - Sm Cabinet
- Formula
- (Na,K)AlSi3O8 (RRUFF)
- Locality
- Larvik, Vestfold, Norway
Compact, tight dark crystals to 1cm in gabbro, a typical association. Anorthoclase is a variety of feldspar intermediate between Sanidine (K) and Albite (Na). The feldspar group is actually a ternary system with Na - Ca - K at the corners.
Anorthoclase
- Formula
- (Na,K)AlSi3O8
- Crystal System
- Triclinic
- Crystal Habit
- Disseminated, Granular
- Cleavage
- Perfect, Good, None
- Luster
- Vitreous (Glassy)
- Color
- colorless, green, gray, gray pink, yellow
- Streak
- white
- Class
- Triclinic - Pinacoidal
- Fracture
- Uneven
- Hardness
- 6
Data courtesy of Webmineral.
- Collection
- Phillips Collection
- Mineralpedia
- View Anorthoclase
- On Dakota Matrix
- Previously Sold Anorthoclase
- On Dakota Matrix
- Other Available Anorthoclase
- WebMineral
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- Mindat
- View Anorthoclase
