The Scottish Gemmological Association

 

 

 

 

Magnetism in Gemstones by Don Hoover

Don Hoover wrote 4 articles on magnetism in gemstones and how to measure it in preparation for the SGA Conference in 2010.

Doug Morgan  built an instrument based on Don's design and has been obtaining excellent results.

Research is ongoing.

Part 1 - The History
Part 2 - The Science Fundamentals
Part3 - Measuring Susceptibility

Part 4 - Understanding Ternary and Winchell Diagrams:

Application to the Garnet Group