Monthly Archives: September 2016

Results from sending a stone to the GIA to be tested for copper.

Well it took $152 and a month to get the stone back with a report. There is no mention of copper in the report. Instead, it says that the cause of the color in the gemstone could not be determined. … Continue reading

Posted in Cuprian Tourmaline, Tourmaline Analysis | Leave a comment

A Case History of an oval pink tourmaline.

Ovals in general have a long history of problems with me. I could not cut them with my original equipment that I purchased as a kid of 15. But when I got back into faceting after a long period of … Continue reading

Posted in Introduction | Leave a comment