Gemstones Encyclopedia

Calcite is common and abundant

The material usually seen on

Cancrinite is one of the

The best-known and generally least

Cassiterite is a durable gemstone

The only reported cut catapleiite

Soft, fragile, and hard to

A little-known gem material of

As beautiful as a diamond,

Although faceting chabazite isn’t too

Technically, chalcedony (kal SED’ uh

Chambersite is an exceedingly rare