Ettringite Value, Price, and Jewelry Information

Comments

South African material has yielded minute stones, some of which may have been labeled sturmanite.

Series to Sturmanite.

Sources

Ettringen, Germany: In tiny crystals.

Franklin, New Jersey: Minute crystals.

South Africa: Associated with sturmanite at the Jwaneng mine, near Hotazel. The sturmanite forms yellowish coatings, with ettringite cores.

Stone Sizes

Material from Ettringen and Franklin is microscopic. A 2.5 carat pale yellow ettringite was faceted from material found in the center of a mass of sturmanite from South Africa. This may be the largest known for the species.