Tibet Andesine Mines • Part 2 • Faith

1 October 2012

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.

Read more

Tibet's Andesine Mines • Hunting Barack Osama in Tibet

1 January 2011

The subject of andesine in Tibet has been one of controversy since 2008. This article examines the history of the issue, along with detailing an October 2010 visit to the Tibetan andesine deposit.

Read more

Tanzanite Mines of Merelani • Working the Blueseam

1 July 2008

An over-and-underground look at the tanzanite mines of Merelani, Tanzania, where the First World meets the Third, and graphite-covered miners pull glittering blue gems from black earth.

Read more

Gem Hunting in Mahenge & Tunduru Tanzania • Downtown

1 April 2008

Since the late 1960's, East Africa has been home to some of planet earth's greatest gem discoveries. And yet, little has been written about certain of these finds. In the autumn of 2007, the authors set out to fill in the gaps, specifically regarding Tanzania's Mahenge, Songea and Tunduru regions.

Read more

Gem Treatment Disclosure • Trust

1 March 2007

A discussion of the ethics of gem treatment disclosure, a comparison of gem treatments, and the crisis these could bring to the industry if mishandled.

Read more

Ruby & Spinel from Tajikistan • Moon Over the Pamirs

1 September 2006

A 2006 mission to remote ruby and spinel localities in Tajikistan.

Read more

UV Fluorescence as a Gemological Tool • Heat Seeker

1 September 2005

One of the greatest gemological challenges is determining if a ruby or sapphire has been heat treated. UV fluorescence can assist in that identification, as well as detecting fillers in emerald.

Read more
Back to top