Diamonds Scientists Research Material as Hard as Diamond Malaysia Diamond Plant Botswana Beats Target Soviet-Singapore Joint Venture New Area in Angola to be Mined Argyle Cutting School Near Beijing Kimberlite Find in the U.S. Diamond-Cutting Industry in Sri Lanka Tanzania Intensifies Mineral Search Prospecting in Botswana Colored Stones Assembled "Plume" Agate Apatite "From Paraiba" and Apatite Purchased as Emerald Brazilian Chrysoprase Major Jade Deposits in Japan Attractive Chatoyant Assembled Opal Peridot Mining Update California Quartz Update Unusual Pseudomorph Rubies from Vietnam? Rock-like Material with Play-of-Color Cat's-Eye Topaz The Discovery of the Paraiba Tourmaline Mine Tourmaline Doublets "Treasure" Postage Stamp Synthetics and Simulants Plastic Cameo Imitations Imitation Emeralds from Southern Africa Imitation Rhodochrosite Beads Announcements Tiffany & Co. Donation to Smithsonian Donation of Citrine to Natural History Museum GemFire Exhibit at Cleveland Museum To view the full section, download the PDF above.
Diamonds Scientists Research Material as Hard as Diamond Malaysia Diamond Plant Botswana Beats Target Soviet-Singapore Joint Venture New Area in Angola to be Mined Argyle Cutting School Near Beijing Kimberlite Find in the U.S. Diamond-Cutting Industry in Sri Lanka Tanzania Intensifies Mineral Search Prospecting in Botswana Colored Stones Assembled "Plume" Agate Apatite "From Paraiba" and Apatite Purchased as Emerald Brazilian Chrysoprase Major Jade Deposits in Japan Attractive Chatoyant Assembled Opal Peridot Mining Update California Quartz Update Unusual Pseudomorph Rubies from Vietnam? Rock-like Material with Play-of-Color Cat's-Eye Topaz The Discovery of the Paraiba Tourmaline Mine Tourmaline Doublets "Treasure" Postage Stamp Synthetics and Simulants Plastic Cameo Imitations Imitation Emeralds from Southern Africa Imitation Rhodochrosite Beads Announcements Tiffany & Co. Donation to Smithsonian Donation of Citrine to Natural History Museum GemFire Exhibit at Cleveland Museum To view the full section, download the PDF above.
