Dims: 2.4 x 2.0 x 1.2" (6.1 x 5.1 x 3.0 cm)
Wt: 2.28 oz. (64.6 g)
At least 10 discernable Sphene crystals rest on the gray-white host rock of this thumbnail specimen. Though a few of them are broken, those that are intact are in excellent condition and reach dimensions of 0.4 x 0.2 x 0.2" (1.0 x 0.5 x 0.5 cm). They generally have excellent monoclinic prismatic form, and most show evidence of twinning. Their edges are well-defined and their faces are generally clean, though a few are coated with what may be tiny chlorite crystals. All have the pale yellow-green color and adamantine luster that are standard for this species, and are dimly transparent due to considerable internal fracturing. They rest on a base rock that I believe is made up mostly of albite.