Lecture • Heaven Below • Jaipur, India • 2 November 2011
An exploration of the places that colored gemstones come from and the manner in which these same gems are marketed by the trade.
Lecture • Gemological Heresies • Bangkok • 29 June 2011
As with any field, gemology is littered with dogma. In this presentation, Richard Hughes slays more than a few of these sacred gemological cows.
Lecture • Humanistic Gemology • Tucson • 3 February 2010
Traditional gemology considers itself a science, but typically omits a key element of the scientific method. And is gemology simply a science, or something more…
Lecture • Jade – Stone of Heaven • Bangkok • 29 April 2009
An account of Burma's famous jade mines, based on three visits between 1996–2004.
Lecture • Hunting gems in Southern Tanzania • Bangkok • 9 March 2009
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, Richard Hughes and friends set out to fill in the gaps, specifically regarding Tanzania's Mahenge, Songea and Tunduru regions.
Lecture • People & Places • Bangkok • 9 July 2008
A survey of the gem mines of Tanzania, including Merelani, Songea and Tunduru, based on Richard Hughes' 2007 trip.
Lecture • People & Places • Tucson • 8 February 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.
Lecture • People & Places • Santa Ana, CA • 23 June 2007
Richard Hughes explores the nexus between gemology, gem mining and culture, arguing that gemology must become something more than science.
Lecture • Jade: Stone of Heaven • Carlsbad, CA • 21 April 2007
An account of Burma's famous jade mines, based on three visits between 1996–2004.
Lecture • People & Places • Washington, DC • 9 April 2007
Richard Hughes explores the nexus between gemology, gem mining and culture, arguing that gemology must become something more than science.
Lecture • Jade – Stone of Heaven • Pasadena, CA • 31 March 2007
An account of Burma's famous jade mines, based on three visits between 1996–2004.
Lecture • From Madagascar to Tajikistan • Tucson • 1 February 2007
Richard Hughes details his visits to ruby and sapphire mines in Madagascar and Tajikistan.
Lecture • Gem Hunting in Central Asia • Bangkok • 7 December 2006
A 2006 mission to remote ruby and spinel localities in Tajikistan, and the famous Russian emerald and alexandrite deposits at Malysheva.
Lecture • From Madagascar to Malysheva • Toronto • 28 October 2006
A 2005 mission to ruby and sapphire localities in Madagascar, and a 2006 visit to the famous Russian Ural Mountain emerald and alexandrite deposits at Malysheva.
Lecture • Madagascar Sapphire • Orlando • 29 April 2006
Discussion of a 2005 visit to sapphire localities in Madagascar.