Over 100 vivid color photographs of beautiful feldspar minerals show each species in its geological context. The feldspar minerals, as a group, make up nearly s

Quartz is prized by both mineral collectors and lapidary artists. Over 130 vivid photographs of these beautiful minerals are presented to show each mineral in i

A guide to the identification, structure, and uses of precious and semi-precious stones, novelty stones, agates, and crystals.

With the tremendous growth of population in this and neighboring states, there are more collectors than ever before and with the rapidly escalating prices for m