Dims: 1.5 x 1.4 x 1.4" (3.8 x 3.6 x 3.6 cm)
Wt: 26.8 g w/ foam base
1525 level, 5w drift, Billie Mine, Inyo County, California, U.S.A.
A cluster of scores of intergrown Colemanite crystals makes up this thumbnail specimen. They are generally in very good condition, showing sparse to moderate damage, and range in size from a few millimeters along each axis to 0.5 x 0.4 x 0.3" (1.3 x 1.0 x 0.8 cm). Their monoclinic prismatic form is excellent- all have well-defined edges and clean faces that possess a bright, vitreous luster. All are colorless and transparent, though high clarity is usually restricted to the tip of each crystal, with the rest being cloudy and milky-white in color. There is no host rock present.