ISBN-13: 9780929975450 / Angielski / Miękka / 2011 / 154 str.
ISBN-13: 9780929975450 / Angielski / Miękka / 2011 / 154 str.
A guide to identifying and evaluating alexandrite, andalusite, chrysoberyl, cat's-eye, kyanite, sillimanite, common opal, fire opal, dinosaur gembone, tsavorite, rhodolite, spessartine, demantoid, malaya, grossular, and other garnets. It explores the history, lore, properties, qualities and geographic sources of lesser-known gems.