Dims: 4.1" x 2.5" x 1.1" (10.4 x 6.4 x 2.8 cm)
Wt: 9.51 oz. (269.7 g)
A botryoidal crust of "kidney ore" Hematite constitutes this Mexican specimen. The thickness of the crust varies considerably, ranging from 0.2 - 0.6" (0.5 - 1.5 cm) and is composed of intergrown Hematite nodules that have been polished to show off their dark gray color and dull metallic luster. The cross-sections of these nodules show compact, fibrous, and radiating tendencies (see the close-up image), and the surface of their underside shows some warped botryoidal and almost crystalline form.. There is a small amount of a dull, brownish rock attached to the underside which may have been stained by the rust that stains the rest of this surface.