Gemstones Encyclopedia

Friedelite is not abundant, and

This is not a terribly

Gahnospinel is a solid-state solution

Discover the diverse world of

This mineral is very hard

A rather rare mineral, lovely

Diamonds with a pure gray

Green diamonds are the oddballs

Grossular garnets come in almost

Gypsum is one of the

Although hard enough for jewelry

One of the major mineral