Gemstones Encyclopedia

Emerald has been synonymous with

Most gem enstatites have indices

Faceted eosphorites in pale colors

The epidote mineral supergroup contains

Ettringite is not generally facetable.

Although hard enough to be

Although lapidaries can cut cabochons

Euxenite is seldom seen in

Feldspars are the most common

This mineral is not abundant

Although too fragile for most

Like their marine cousins, many