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Typo


#1

Sorry…It seems that I have mixed up the URL’s…
Many thanks for Fred Ward who kindly corrected me…:slight_smile:

Here are the right ones…


Tips From The Jeweler’s Bench - Update Notice


ADDED

o Basic Optics Notes for Gemology
https://www.ganoksin.com/borisat/nenam/optic.htm

o Notes On Specific Gravity
https://www.ganoksin.com/borisat/nenam/gravity.htm

o The Story of Red Spinel
https://www.ganoksin.com/borisat/nenam/sspinel.htm

Regards
Dr. E. Aspler
Managing Director
Ganoksin Jewelry Co.,Ltd.
aspler@ganoksin.com