Dims: 1.2 x 0.8 x 0.8" (3.0 x 2.0 x 2.0 cm)
Wt: 25.7 g w/ specimen box
Scholler Mine, Kladno, Czech Republic
At least 25 small Sal Ammoniac crystals rest on the iron-bearing host rock of this thumbnail specimen. These crystals range in diameter from 2 mm to 0.2" (6 mm) and are generally in very good condition. Their dodecahedral forms are often very warped due to intergrowth and other growing conditions, but most have excellent form with well-defined edges and clean faces that possess a bright pearly-to-vitreous luster. They are generally colorless, transparent, and very clear, though a few may show interference through rust inclusions from the iron-bearing host rock. The piece is hot-glued into a plastic specimen box.