Mineral: | Afghanite
| Chemical Formula: | (Na,Ca,K)8(Si,Al)12O24(SO4,Cl,CO3)3·(H
2
O) | Size: | 42,1 x 39,1 x 28,8
crystal: 23,2 x 10,4 x 8,8 mm | Weight: | | Transparence: | translucent - transparent | Quantity: | | Origin: | Sar-e-Sang District, Koksha Valley (Kokscha; Kokcha), Badakhshan (Badakshan; Badahsan) Province, Afghanistan | Fine afghanite with transparent to translucent appearance. The color is very even distributed throughout the crystal. The point shows a minor crystalline fracture face but is hardly visible. Fine twinned specimen from Afghanistan!
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