A carving originally thought to be beryl is examined and identified as amblygonite-montebrasite.
詳細を読むA report from The International Colored Gemstone Association’s Gemstone Industry & Laboratory Conference (GILC), held in Tucson, Arizona on February 2, 2015.
詳細を読むA gemological examination of chrysocolla in quartz from Tucson’s AGTA show.
詳細を読むThe author tests the suitability of a portable paper microscope, called the Foldscope, for gemological application.
詳細を読むA report from the Second International Diamond School, held in Brixen, Italy in January 2015.
詳細を読むA review of Chinese freshwater cultured pearl production, with an update on the market for Tahitian, South Sea, and akoya cultured pearls.
詳細を読むA discussion of the current demand for tsavorite and spinel in today’s market.
詳細を読むGarnets and a wide variety of tanzanite at the Tucson gem shows.
詳細を読む