Decent lavender without copper emerald cut.#715

Non-cuprian lavender from Madagascar Madagascar is the birth place of this smaller emerald cut with relatively poor gemological properties. Its claim to fame is a lavender purple that is very close to the cuprian tourmaline's purples. It weighs 1.33 carats.

This emerald cut will not win any prizes for cleanliness or excessive brightness since its crystal is below average, but its color assure it a place in the collection.  This is one of my better non-cuprian purples and it is fascinating.  I just compared it with a cuprian round that is a very nice purple and the stronger purples in the dichroic ends of the emerald cut are very similar to the cuprian round.  It kind of makes me wonder if the non-cuprian emerald cut would turn a pale blue if heated (rest assured, I will not be heating it) like the cuprian purples from Mozambique.  I believe the non-cuprian (I checked with my spectrometer) in the collection come from Madagascar and this fine example that is certainly less than perfect, weighs 1.33 carats.  Now you can appreciate a little more, why it can be so hard to identify much in tourmaline by color.

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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