Mineral: | Lazurite / Phlogopite Calcite
| Chemical Formula: | (Na,Ca)8 [(S,SO4,Cl2 )|Al6Si6O24 ] / KMg3(Si3Al)O10(F,OH)2 / CaCO3 | Size: | 68,0 x 59,4 x 41,3
crystal: 21,5 x 21,0 mm | Weight: | | Transparence: | | Quantity: | | Origin: | Sar-e-Sang District, Koksha Valley (Kokscha; Kokcha), Badakhshan (Badakshan; Badahsan) Province, Afghanistan | Fine lazurite cabinet with at least eight fully undamaged crystals in matrix. The crystals disclosing partly very fine deep blue coloration and translucency beneath the surface. The matrix consists hundreds of small white, partly blue diopside crystals. Beautiful well sized specimen from Afghanistan.
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