M.J. Hibbard

Anhydrite


Anhydrite
   CaSO4    Orthorhombic
o Hydrothermal (precipitation) and parametamorphic environments (chapters 12, 14, and 18)
- Cleaved anhydrite (pseudocubic cleavage) associated with small quartz crystals (upper left). Hand specimen width is 6 cm. Specimen supplied by H. Gordon.


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