40128: Ulexite - Was
$8 Now $4 Rio Tinto Borax Mine, Kramer Borate deposit, Boron, Kern County, California Miniature - 3.2 x 2.9 x 2.3 cm 33 grams Specimen status: Available Send an email with specimen number to order A translucent mass of compact and
somewhat silky ulexite fibers, very typical for the
species/locality. This sample was sawn on both the top and
bottom in an effort to make fiber optic 'TV stone', but
the ends were not polished. Despite its rough form, light
transmission between the base and top is still very
efficient; a simple polish (ulexite is soft) would improve
this.
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