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.