topaz | AZGS Document Repository
These gems are mostly sold in local markets; gem collectors and mineralogists also purchase them, for private collections, as a rule. Arizona Gems. The best known gems found in Arizona are turquoise, garnet, peridot, chrysocolla, azyrmalachite, malachite, agate, chalcedony, amethystine quartz, diamond (meteoric) dioptose and topaz.