Dims: 2.5 x 1.4 x 1.4" (6.4 x 3.6 x 3.6 cm)
Wt: 2.48 oz. (70.3 g)
Upuwu Mine, northern Namibia
A single cluster of Diopside crystals rests at one end of the quartz base of this specimen. There are at least 12 crystals in the cluster, reaching lengths of just over 0.3" (8 mm). Though a few are lightly damaged and one is broken, the cluster is generally in good condition. All of the crystals have excellent trigonal prismatic form, with well-defined edges and clean faces, and show the classic deep emerald-green color and vitreous luster of their species. They are transparent and moderately to very clear. The cluster rests on the edge of a thin, botryoidal plancheite crust that appears to me made up of countless intergrown clusters of microscopic, pale blue needles. The quartz base on which they rest shows no evidence of crystal form.