A bit of mint covered in chocolate, dichroic round. #88

Chocolate brown with a bit of mint, dichroic round.  #88 This eye clean, standard round brilliant is dark and dominated by rich chocolate brown. The green mint can only be seen when tilted from face up. It weighs 1.71 carats

When I came to this small round that was cut years ago, it made me pause.  I have written golden green on the back of its storage box ,but I am seeing a more complex picture than that.  This standard round brilliant is strongly dichroic.  It has a very strong brown principle axis and at best a medium toned green axis.  The table of the stone is cut parallel to the principle (c) axis and that should lead to four alternating slices of pie shaped areas of dichroic color.  But the brown color has such a high tone level that the poor lowly green color can barely be seen face up, as an area of paler brown.  You can really only see the green a/b axis color when you tilt the round at about 45 degrees to the table.  Then the green will flash at you as you rotate the stone.  So this piece of rich chocolate brown tourmaline appears to be eye clean, needs decent light to speak its color and weighs 1.71 carats.  It is still a rather solitary soul that feels it is still misunderstood by most of the world.

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.
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