About

Clive Washington

Senior Lecturer, University of Nottingham, U.K.

Articles by


Clive Washington

Gemstone Radiation Treatment

Most gems on the market today receive various treatments to change their natural colors and create more desirable, salable products. Radiation…

Lap Testing

An overview on lap testing and the results of test. In an attempt to improve faceting, various laps and polishing combinations were performed and…