Dims: 0.9 x 0.6 x 0.4" (2.2 x 1.5 x 1.1 cm)
Wt: 4 g
Tsumeb Mine, Namibia
This thumbnail consists of several Dioptase prisms clustered on a small bit of base rock. The crystals do not exceed 0.2" (5 mm) in either length or diameter and are in good condition, showing light damage. Their trigonal form is excellent, and all have the classic deep green color and vitreous luster of the specie. They are transparent but only dimly to moderately clear due to internal fracturing. The piece is hot-glued inside a plastic thumbnail box.