Calcium Gypsum
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Description from the source:
Gypsum (Ca SO4x2 H2O mon.), desert of Morocco. Geminate crystals with sand inclusions. 3x2,7x1,2 cm; 6 g.
Source: Simone Citon
Contributor: John Gray
Acquired: 10 January, 2009
Text Updated: 10 January, 2009
Price: Trade
Size: 1.2"
Composition: CaSO4.2H2O