Mineral: | Scheelite
| Chemical Formula: | Ca[WO4] (approx. 3 wt% ReO3) | Size: | | Weight: | | Transparence: | transparent - translucent | Quantity: | | Origin: | Koksha Valley (Kokscha; Kokcha), Badakhshan (Badakshan; Badahsan) Province, Afghanistan | Scheelite crystal from Afghnaistan , a very rarely found species for this location. Unusual is that this piece is containing up to 3 wt% Rheniumtrioxid !! The maximum concentration in molybdenum ores is up to 0.2w%. The crystal itself discloses an unblemished euhedral shape (far better seen in person).
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