✨ Amazing BIG Blue Chalcanthite on Gypsum mineral Matrix on display

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Amazing BIG Blue Chalcanthite on Gypsum mineral Matrix on labeled display

A delicate mineral that is admired for its intense blue color.
Chalcanthithe has several alternative names, including blue stone, blue vitriol and copper vitriol.
Its name comes from the Greek words "chalkos" and "anthos", meaning copper flower.

Gypsum is a very soft mineral that is easily identified by its hardness, cleavage, and solubility in water. Typically clear to white, gypsum may be colored reddish to brown or yellow if impurities are present. Most gypsum occurs in its massive form, as layers of rock that often intercalate layers of shale, limestone, or dolostone. Alabaster is a common name used for particularly pure deposits of massive gypsum. Gypsum also occurs in crystal form, with the two most common varieties being large clear crystals that are often termed selenite, and fibrous crystals, known as satin spar.