Mineral "Gypsum"

65 €

Assal Lake, Tadjourah Region, Djibouti, Africa, private collection from Finland.

Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate. A massive fine-grained white or lightly tinted variety of gypsum, called alabaster, has been used for sculpture by many cultures including Ancient Egypt, Mesopotamia, Ancient Rome, the Byzantine Empire, and the Nottingham alabasters of Medieval England. The word gypsum is derived from the Greek word γύψος (gypsos), "plaster". Gypsum occurs in nature as flattened and often twinned crystals, and transparent, cleavable masses called selenite. Selenite contains no significant selenium; rather, both substances were named for the ancient Greek word for the Moon.

Superb gypsum selenite crystal specimen with transparent and translucent bladed crystals. Beautiful pale yellow color. The condition of the sample is excellent. Age-related wear, fractures and minor cracks may appear. Dirt and dust may exist. Size approx. 12,5cm x 7,3cm x 3,2cm. Weight c. 242g.