Dims: 1.91x1.02x0.65" (4.85x2.58x1.65cm)
Wt: 0.55oz (15.5g)
Weisloch, Heidleberg, Baden, Germany
This is a very nice specimen of the colorless clear selenite variety of gypsum. It has one large nearly perfectly shaped crystal (a parallelogram with roof-shaped edges), two small intergrown crystals, plus a pyrimidal cavity. The point of the cavity, the bases of the two small crystals, and the center of the large one are all the same point in space. There are some dull black inclusions in the large crystal, as well as several internal fractures that reflect a rainbow interference pattern. The is a fairly small amount of damage, considering the softness of this mineral.