Dims: 3.2 x 2.7 x 1.6" (8.1 x 6.9 x 4.1 cm)
Wt: 5.12 oz. (145.4 g)
Benitoite Gem Mine, San Benito County, California, U.S.A.
This hand specimen consists of a single Neptunite crystal that rests on the natrolite-encrustsed base. This crystal has dimensions of 0.6 x 0.2 x 0.1" (1.6 x 0.5 x 0.3 cm) and is in excellent condition, showing little damage. Its monoclinic form is also excellent, and it has a black color with brown highlights and a vitreous luster. Given its color, it is essentially opaque.