Dims: 2.38" x 2.38" x 1.5"(6.0 x 6.0 x 3.8 cm)
Wt: 5.01 oz.(142.1 g)
1425 5W, Billie Mine, Inyo County, Death Valley, California, U.S.A.
This is the first substantial specimen of Colemanite that I have seen, and it is splendid! Like David's description, it is composed of a cluster of short prismatic crystals with a complex form and many, many crystal faces that are clean and mostly free from damage. There are no striations to speak of and a vitreous luster that adds to the specimen's brilliance and helps to expose each crystal's transparency. Clarity is good throughout each crystal, with some spots showing excellence. There is no host rock attached to the specimen, which has been glued to a square sheet of styrofoam(painted black). This sheet fits nicely into a plastic display box that is only slightly wider and deeper than the specimen itself. Ah yes, and I forgot to mention one thing- when I first opened up the box and was closely examining the specimen(I mean very closely), my nose started to tingle a bit, so I took a good whiff of the piece. It secretes an acrid odor reminiscent of the one that concentrated hydrochloric acid gives off when it is dissolving calcite! Weird!