Dims: 3.43x2.30x1.85" (8.71x5.84x4.70cm)
Wt: 12.31oz (349g)
Choix, Sinaloa, Mexico
This smithsonite specimen is ugly enough to be pretty, if you know what I mean. A host rock which appears to be limonite, goethite, and colorless smithsonite largely intergrown with each other (yielding a gray-brown-black color), is overgrown with colorless smithsonite, which itself is largely covered with pink smithsonite on one side, purple smithsonite on another, and a sparkly gray-pink crust on a third. A loupe reveals that this crust is actually a thin layer of tiny, bright pink balls of transparent smithsonite over a goethite base. In places these balls grow together yielding a typical botryoidal smithsonite appearance (at least through a loupe). About half of the surface are fractures where this specimen was removed from the host rock.