I wouldn’t call this anything, but mahogany or maybe golden brown, oval#299

A slider, but a wonder mahogany under yellowish light oval.  #299 This is a beautiful gemstone. It can slide from golden brown to mahogany, is always brown. It is eye clean and has fine crystal. It has a medium dark tone, but won't sit still in a decent light. It weighs 5.34 carats.

Brown was suppose to be brown and then I got into mahogany.  Now I am seeing storage boxes with golden brown on the back and I see the most wonder rich sultry mahogany under my yellowish florescent light.  I check one of the ovals, I posted about during the day, to see if it would be affected by the yellow in my artificial light.  It had not noticed the difference.  So I would say that we are dealing with a different twist, like color in tourmaline always give to those that get too general with it.  Similar colors under one illumination do not necessary stay similar under another illumination.  The difference in color is caused by metamerism. It is a feature of our type of seeing and can drive lovers of tourmaline to question their eyes.

The posted stone appears to be eye clean and with fine crystal.  Its medium dark body is so smooth that the abundant, flash driven color seem to melt into the corners.  It weighs 5.34 fine, beautiful carats.


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.
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