Mineral: | Sphene (Titanite)
| Chemical Formula: | CaTiSiO5 | Size: | 48,0 x 31,0 x 29,0
crystal: 16,7 x 3,8 mm | Weight: | | Transparence: | transparent - translucent | Quantity: | | Origin: | Koksha Valley (Kokscha; Kokcha), Badakhshan (Badakshan; Badahsan) Province, Afghanistan | This is a rare yellow Sphen crystal in matrix, disclosing a superb sharp shape with partly very gemmy transparency and great luster. There is only a slight damaged spot but at one side of the crystal, nevertheless a fine colored specimen with very defined and sharp edges and crystal striation, around the crystals you can see also greenish black hornblende crystals.
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