Anhydrite was believed to be discovered in 1794. However, in 1804, a German geologist named Abraham Gottlob Werner discovered and named it anhydrite. This name refers to the idea that this mineral does not contain water.

Where is anhydrite found?

Anhydrite occurs most often with salt deposits in association with gypsum, as in the cap rock of the Texas-Louisiana salt domes. Anhydrite is one of the major minerals in evaporite deposits; it also is present in dolomites and limestones, and as a gangue mineral in ore veins.

Is anhydrite rare or common?

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Rare and difficult to cut, anhydrite is seldom faceted. However, this material can be carved into beautiful objects. “Angelite,” a blue-gray variety, has become a popular choice for lapidary arts.