Seeing Red — Genetics & Color Vision — Lotus Gemology
Do men and women have the same ability to see red? The answer might shock you.
Articles
The Gemologist's Core Library — Classic Books on Gemology, Jewelry and Mineralogy
A curated list of the most important books on gems, gemology, jewelry, mineralogy and allied fields.
Mogok Geology Primer — Rock Talk
A look at the geology of Myanmar's Mogok Stone Tract, home to pigeon's blood rubies and so much more…
Mogok Revisited — A Brief Stay in Heaven
An account of a 2013 visit to Mogok – Myanmar's fairy-tale wonderland.
Cobalt-Doped Glass-Filled Sapphires — An Update
The history of glass-infilling in blue sapphire, along with a description of the latest treatment generation developed in Chanthaburi, Thailand.
Guangzhou Jade Market Puzzle — A Chinese Jade Box
An investigation into nephrite and imitation nephrite pebbles purchased in Guangzhou, China's Hualin Street jade market.
Jade Buying Guide — Jade Auction Records
This article discusses the factors that influence quality and what to look for when buying both fei cui and nephrite. A list of jade auction records is also included.
Ruby, Sapphire & Spinel Auction Records — Under the Hammer
World auction records for ruby, sapphire and spinel.
In Search of the Lost Andesine Mines — Part 2 — Faith
The mining of natural red andesine in Tibet has been a subject of controversy. This article describes RWH's second visit to the Tibetan deposit.
Lao Sapphires — Laos – Land of a Million Elephants... & Sapphires
The history of the Lao sapphire mines at Ban Huay Xai is detailed, along with modern mining by Hong Kong based Sino Resources Mining Corp. Ltd. from 2006–2012.