Exotic Gems: How to Identify, Evaluate, Select and Care for Matrix Opal, Fire Agate, Blue Chalcedony, Rubellite Indicolite, Paraiba and Other Tourmalines (Newman Exotic Gems)

Exotic Gems, Volume 2: How to Identify and Buy Alexandrite, Andalusite, Chrysoberyl Cat's-eye, Kyanite, Common Opal, Fire Opal, Dinosaur Gembone, Tsavorite, Rhodolite & Other Garnets

Exotic Gems: How to Identify and Buy Tanzanite, Ammolite, Rhodochrosite, Zultanite, Sunstone, Moonstone & Other Feldspars (Newman Exotic Gem Series)

Exotic Gemshow to Identify, Evaluate & Select Jade & Abalone Pearls Volume 4 (Newman Exotic Gems)

Rare Gemstones: How to Identify, Evaluate and Care for Unusual Gems

Pearl Buying Guide: How to Identify and Evaluate Pearls

Gemstones of the World: Newly Revised Fifth Edition

Gemstone Buying Guide, Third Edition (Newman Gem & Jewelry)

Gem: The Definitive Visual Guide

Gold, Platinum, Palladium, Silver & Other Jewelry Metals: How to Test, Select & Care for Them

Handbooks: Gemstones: The Clearest Recognition Guide Available (DK Smithsonian Handbook)