 
SMITHSONITE
Specimen smi-76
$ 105.00Dims: 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.
 
