Dims: 5.1" x 2.5" x 1.7" (13.0 x 6.4 x 4.3 cm)
Wt: 13.1 oz. (372 g)
Minas Gerais, Brazil
This specimen consists of several partial Chrome Diopside crystals that are embedded in a massive quartz matrix. Only a few of these pieces show any evidence of Diopside's monoclinic prismatic form, and none are by any means complete. They show a magnificent forest-green coloration, though, and the visible crystal faces have a bright, vitreous luster. All of the material is too intensely internally-fractured to be worthy of a gem cutter's saw, but it gives one a good idea of the color of the gemstones that this material can produce. The quartz matrix is colorless and somewhat transparent, though it too is heavily internally-fractured. It is shapeless and shows no evidence of crystal form.