SMITHSONITE
Specimen smi-30
$ 38.00Dims: 2.3" x 1.8" x 1.1" (5.8 x 4.6 x 2.8 cm)
Wt: 3.70 oz. (105.1 g)
Kelly Mine, New Mexico, U.S.A.
This is one of the more bizarre Smithsonite specimens from the Kelly Mine in the southwestern U.S. that I have come across. It appears upon first glance to consist of a crust of blue-green botryoidal Smithsonite coating a base of hematite or limonite. However, this "base" contains a considerable amount of more Smithsonite, and could be mostly Smithsonite by weight, though that is difficult to discern. The Smithsonite that makes up the outer shell has a rather dull luster, with only small areas showing any of the beautiful "melted wax" sheen. It is translucent, and its coloration intensifies in the lower, earlier layers. A few small and very bright aqua-blue sprays of the mineral show its compact, fibrous, and radial habit. This specimen warrants some further study, I think.