Gemology: the science of gem materials.

Chrome Tourmaline, 2.4 cm, 7.63 cts, Tanzania William Larson 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 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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