Turquoise from Western Arkansas
A report on turquoise from the only known U.S. deposit outside of the Southwest.
Ponderosa Sunstone Update
John Woodmark provides an update on the Ponderosa sunstone mine in Oregon.
Freshwater Natural Pearls from the Concho River, Texas
A rare look at freshwater pearls with a United States origin.
Aquamarine from Pakistan
A gemological investigation of the aquamarine that has emerged from northern Pakistan in recent years.
Opal from West Java, Indonesia
Description of Indonesian opal reportedly from West Java.
A New Discovery of Emeralds from Ethiopia
A report on a new Ethiopian source of high-quality emerald.
Sapphire Rush Near Ambatondrazaka, Madagascar
A newly found deposit of sapphire in Madagascar is explored.
Update on Colored Gemstone Mining in Tanzania
Reports on an expedition to many known and new Tanzanian gem localities.
Aquamarine from a New Primary Deposit in Mexico
Examination of aquamarine samples from a new primary deposit in San Luis Potosí, northern Mexico.
Reports on exceptionally rare trapiche-patterned rhodochrosite from the famed Capillitas mine in Argentina.