Sending a tourmaline to the GIA for a report on copper.

I have been working with Laura, my older daughter to try and get a page for selling selected stones on my website. Well it is together now and you can go there from the main page. I am not really selling cuprian tourmaline now, but I did get an inquiry about a reddish purple oval so I decided to send the stone to the GIA for a report on its copper content. I used a local jeweler that I have dealt with in the pass and I hope to get the stone back soon. It is a beautiful 2 carat oval that is eye clean and has a vivid color. I definitely saw indications of copper with my spectrometer though it could have been interference from manganese +3 since it has a lot of red in it. The report should resolve that question and permit me to value the stone realistically. I will be posting the results.

Bruce

About Bruce Fry

I was born in Summit, NJ in 1947 and graduated from Summit High School in 1966. I graduated from the Colorado School of Mines in 1970 and after spending another year in graduate school, I left to see the world of Brazil. After spending some more time discovering myself, I ended up working for the Commonwealth of Pennsylvania for 32 years as an Air Quality Engineer in the Department of Environmental Protection. I retired in 2007 and took up faceting gemstones again after a long hiatus that reached back to my twenties. I had started cutting cabochons when I was 13 and bought my first faceting machine when I was 15, but ran out of money and time until I retired. My great love in gemology is tourmaline and the collection presented here represents my effort to get as much beauty and variety in the colors of tourmaline as I can. I was particularly lucky in being able to get unheated cuprian tourmaline before copper was discovered in gem grade tourmaline from Mozambique.
This entry was posted in Cuprian Tourmaline, Tourmaline Analysis. Bookmark the permalink.

Leave a Reply