Aquamarine from a New Primary Deposit in Mexico
Examination of aquamarine samples from a new primary deposit in San Luis Potosí, northern Mexico.
Large Aqueous Primary Fluid Inclusion in Amethyst
A strikingly large primary fluid inclusion with a gas bubble was seen in a Moroccan amethyst.
Preliminary Study on Rubies Reportedly from Pokot, Kenya
Reports on the internal features and spectroscopic and trace-element analysis of rubies reportedly from Pokot, Kenya.
“Punsiri”-type FTIR Spectral Features in Natural Yellow Sapphires
Testing of natural-color yellow sapphires from Australia and Thailand with the FTIR features of “Punsiri” heat-treated material.
Purple Pyrope-Almandine Garnet From Mozambique
Analysis of attractive purple garnets from a new deposit in central Mozambique.
Trapiche Rhodochrosite (英語)
Reports on exceptionally rare trapiche-patterned rhodochrosite from the famed Capillitas mine in Argentina.
Update on Colored Gemstone Mining in Tanzania
Reports on an expedition to many known and new Tanzanian gem localities.
Blue Sapphire Reportedly from Badakhshan, Afghanistan
Reports on the internal features and spectroscopic and trace-element analysis of sapphires reportedly from Badakhshan, Afghanistan.
Fred Ward (1935–2016)
Gem Materials at the Second European Mineralogical Conference (emc2016)
GSA 2016 Annual Meeting
Scientists and gem experts shared the latest research and studies on gemstones at the Geological Society of America annual meeting in Denver.
