Jade in Upper Burma — Heaven and Hell
An account of the authors' 1997 visit to Burma's jade mines.
Articles
Burma’s Jade Mines — Tracing the Green Line
In 1996, several gemologists set off for Burma's remote jade mines, the first visit by foreigners since the early 1960's. This is the story of their epic journey.
Pigeon's Blood — Pilgrimage to Mogok – Valley of Rubies
The author makes his first pilgrimage to Burma's Mogok Stone Tract.
Burmese Sapphire Giants
A brief history of Burmese (Myanmar) sapphires, along with details of some of the major pieces of yore.
Brilliance, Windows, and Extinction in Gemstones
A discussion of brilliance, windows and extinction as they relate to the face-up appearance of colored gemstones. Diagrams demonstrate that extinction is largely a function of cut.
Canary in the Ruby Mine — Low-Temperature Heating of Burmese Ruby
Detection of heat treatment below 1200°C in ruby and sapphire can present challenges to gemologists. In this study, the authors heated Burmese ruby samples and detailed the features that help in the detection of heat treatment.
Auctions & Press • Lotus Gemology in the News
Lotus Gemology has been featured alongside many important gems and pieces of jewelry at auction and by jewelers.