Dims: 5.8" x 5.2" x 3.4" (14.7 x 13.2 x 8.6 cm)
Wt: 5.27 oz. (149.6 g)
Tchenomorskiy Mine, Kertch, Krym Peninsula, Crimea, Ukraine
Several clusters of monoclinic, bladed Vivianite crystals rest on the host rock of this specimen. These clusters (and hence, the crystals) do not exceed 1.2" (3.0 cm) in length, and are generally in very good condition, as a few of them show damage and incomplete crystals. All show moderate form, as they are quite intergrown, and their prism and termination faces do not appear to be definite. They have a deep blue to deep green coloration and a pearly luster, and are dimly transparent when viewed in a bright light. They rest upon a very thin, black, botryoidal crust that I would guess is made up of an iron or manganese oxide. This crust rests on the brown, oolitic host rock, which looks an awful lot like bauxite.