Gypsum crystals

Credit: MARTIN BOND/SCIENCE PHOTO LIBRARY

Caption: Yellow gypsum crystals. Gypsum (hydrated calcium sulphate) is a common sedimentary evaporite; a mineral deposited during the evaporation of saline waters. Its colour is due to impurities. Gypsum is used in plaster for the construction trade.

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Keywords: coloured, crystal, crystalline, crystals, earth science, evaporite, geological, geology, gypsum, hydrated calcium sulphate, impure, impurities, industrial, industry, mineral, rock, yellow

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