Dims: 2.3 x 1.1 x 0.8" (5.8 x 2.8 x 2.0 cm)
Wt: 1.4 oz. (39.1 g)
Willow Creek, near Nanton, Alberta, Canada
This large thumbnail specimen consists of a single monoclinic Selenite prism. It is in excellent condition, showing almost no human-induced damage. Its form is likewise excellent, with well-defined edges and very clean faces that possess the standard pearly luster. There is one obvious growth irregularity that extends across one of its largest faces. It is colorless, transparent, and mostly very clear; however, It does contain several inclusions and a few internal flaws, one of which is caused by the imperfection in its face. At least 4 others are caused by other growth-related imperfections. Two greenish-brown cloudy inclusions tint the material just beneath the two main acute angles of the prism- these are effectively in a phantom form, and I cannot identify the impurity. Like all such specimens from this locality, there is no host rock present.