REALGAR
Specimen rea-19
$ 28.00Dims: 2.04x1.51x1.47" (5.19x3.83x3.74cm)
Wt: 3.92oz (110.8g)
Alsitar, Iran
This specimen may be mostly realgar by weight. It is composed of crystals of transparent red realgar intergrown with some black mineral that looks vitreous, possibly even transparent in areas. The realgar has begun to alter to orange-red, powdery para-realgar in several places. To retard that inevitable process, realgar specimens should be stored in the dark and only exposed to light when they are being actively examined.