New Emerald Locality in Southern California
Located about 60 miles east of San Diego, a new emerald deposit has been discovered in the Julian Mining District.
Rhodium-Plated Iron Meteorites
The annual Tucson Gem and Mineral Show has been a reliable source for the niche and the unusual, as seen with the rhodium-plated iron meteorites acquired by author BL at the 22nd Street Show in February 2020.
Oiled Tanzanite
A large tanzanite loses its appeal with the removal of its fracture-filling oil.
American Gem Society Upcoming Events
The American Gem Society (AGS) announces two events for 2021: Confluence in April and Conclave in September.
2020 World Pearl Congress
The production of Chinese freshwater pearls faced little disruption from the global pandemic according to sources at the World Pearl Congress.
Spectral Analysis of Resin Imitation Ivory
Spectroscopic techniques prove key in separating resin-based imitation ivory from natural ivory.
Update on Inclusions in Emeralds from Davdar, China
Testing reveals interesting inclusions in Chinese emeralds to be calcite and dolomite.
Dendritic Inclusions in Nephrite from Dahua, China
Unique dendritic inclusions containing penninite may be a key indicator of origin for Dahua nephrite.
A New Phantom Quartz Imitation: Laser-Engraved Rock Crystal
Small cracks from laser engraving reveal the origin of these phantom quartz imitations.