Gemology: the science of gem materials.

Chrome Tourmaline, Photo by Jeff Scovil.

Chrome Tourmaline, 2.4 cm, 7.63 cts, Tanzania
William Larsen Collection
Photo: Jeff Scovil, used with permission.

Gemology

Gemology: in Pursuit of a Passion

The Working Library: a Gemological Reference Collection

Resources and Education

Gemology Tools and Equipment

The Microscope and Gemology

Alan Hodgkinson and Visual Optics

Researchers, Authors and Adventurers

Goldsmiths and Lapidaries

Thailand

The World of Gems Conference

Gem-A Centenary Conference

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