  Danburite.
Description from the source:
Danburite (Ca B2 (SiO4)2 orth.), Charcas, San Luis Potosi`, Mexico. White large terminated crystal. 7x4x1,8 cm; 70 g.
Source: Simone Citon
Contributor: John Gray
Acquired: 30 September, 2008
Text Updated: 1 October, 2008
Price: Trade
Size: 2.75"
Composition: CaB2(SiO4)2
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