Dims: 0.8 x 0.5 x 0.3" (2.0 x 1.2 x 0.8 cm)
Wt: 2 g
Rex Mine, Boulder County, Colorado, U.S.A.
A crystalline Sylvanite formation extends from the quartz base of this thumbnail specimen. The formation is in excellent condition, showing no damage, and has dimensions of 0.3 x 0.2 x 0.1" (9 x 4 x 3 mm). Though the Sylvanite does not show any definite monoclinic form, it is certainly crystalline and has the classic silvery-white color and metallic luster of its specie. The base from which it extends contains a vein of either Sylvanite or possibly empressite that extends completely through it.