A standard round brilliant, non copper, less tone level than the following cuprian purple, but very similar hue (color). It weighs 1.01 carats.
A standard round brilliant, cuprian, a bit darker than the non copper above, but with a similar hue. It weighs .77 carats.
This purple does not have a great deal of gray or brown in it and it is non-cuprian. This gives the newly mined droplet of color, a look that is remarkably close to a cuprian purple with the same tone value. I will post pictures of both gemstones and let you see for yourself. When I get my spectrometer set up for color analysis, I will have to check these two attractive gemstones out. The posted non-cuprian purple is bright, eye clean and with fine crystal. It weighs 1.01 carats.
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.
