Bicolor Double-Eye Tourmaline
Unusual Pink Sapphire Bead
Iridescent Musgravite
A musgravite specimen’s inclusions result in an optical phenomenon unusual for the material.
Unique Tourmaline Necklace
An unusual parti-color tourmaline necklace and clasp are seen at the 2015 AGTA show in Tucson.
Nonbead-Cultured Pearls from Strombus Gigas
Advances in pearl culturing are seen in a parcel of specimens from Strombus gigas gastropods.
在 GIA 鉴定所鉴别出的近无色的米粒尺寸高压高温 (HPHT) 合成钻石 (英语)
The Bangkok lab examines near-colorless HPHT synthetic diamonds in melee sizes.
Unusual Combination of Inclusions in Synthetic Star Sapphire
A hexagonal boundary, usually found in natural material, is observed in a synthetic star sapphire.
Blue Chalcedony Partially Filled with Epoxy Resin
A carving identified as blue chalcedony shows evidence of epoxy resin treatment.
Chemical Analysis of Zircon
Trace-element analysis is used to identify metamictization, treatment, and growth conditions of zircon.
Maine Pegmatite Workshop
A report summarizing the expeditions and lectures at the June 2015 pegmatite workshop in Poland, Maine.
Large Cat’s-Eye Emerald from Brazil
A translucent Brazilian emerald exhibiting pronounced chatoyancy is examined.
图书：Imperial Jade of Burma and Mutton-Fat Jade of India（《缅甸帝王玉和印度羊脂玉》） (英语)
评论 S.K. Samuels（S.K. 塞缪尔）的 Imperial Jade of Burma and Mutton-Fat Jade of India: Mining, Trade, and Use from Antiquity to the Present（《缅甸帝王玉和印度羊脂玉：从古至今的开采、贸易及使用》）。
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