A faintly dichroic green oval

Above average slightly dichroic green oval. Areas of this gemstone lack flash because of the c axis. It does have plenty of flash in the ends. Its color is a good tourmaline green and it appears to be eye clean and weighs 1/77 carats.

This oval is a very nice green and is only faintly dichroic.  This lets the ends of the oval be nice and flashy.  Still I don’t think that the c axis is aliened with the long axis of this oval and where I see the c axis color the gemstone lacks some transparency and flash.  The dulling of flash by the c axis is an interesting effect that I find occasionally.  You would have to be looking for it in the gemstone since it does not impact this stone very much.  Others are not so lucky.  The gemstone appears eye clean and weighs 1.77 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.

This entry was posted in Verdelite and tagged , , , . Bookmark the permalink.

Leave a Reply