Euxenite is seldom seen in collections. Most collectors would not regard the mineral as facetable, but transparent fragments and areas […]

Although lapidaries can cut cabochons and decorative objects from massive or translucent eudialyte crystals, transparent material suitable for faceting is

Although hard enough to be worn safely in jewelry, euclase in beautiful colors is rare over a few carats. It’s

Ettringite is not generally facetable. Any cut stone would be considered an extreme rarity.

The epidote mineral supergroup contains many related species of interest to collectors. However, epidote itself is the one most likely

Faceted eosphorites in pale colors are quite attractive and easy to cut. However, these very rare gems are too soft

Most gem enstatites have indices in the range 1.663-1.673. The brown and green gems from Tanzania are enstatites, as are

Emerald has been synonymous with the color green since ancient times. A fine emerald is a truly breathtaking sight, and

A relative newcomer to the world of gemstones, ekanite is rare and usually quite radioactive. When cabbed, some ekanites can

Dumortierite is a beautiful and very hard material, eminently suitable for jewelry. The cabochon material is the only generally known