Monthly Archives: January 2015

Blue Purple Color a Tourmaline Quest

As I have written, one of the colors of tourmaline I wanted to obtain when I started cutting again after many years was blue purple.  One of the best things about being able to purchase unheated Mozambique cuprian tourmaline for … Continue reading

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Rubellite/Pink tourmaline, limitations on heating and irradiation.

The investigation of color in tourmaline and what causes it is complex.  Many investigators have proposed causes for the colors in tourmaline, but have either been unable to prove the conjecture or proven wrong.  In the case of the red … Continue reading

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Measuring and passing on information about color in tourmaline.

Today I sat down with some trays of tourmaline and access to a gemstone color matching system.  The system certain showed that a great deal of work had been done to present color in different cuts, tones, saturation besides just … Continue reading

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Finally finishing a couple of included pieces of blue green tourmaline

I am not sure that would have even purchase these two pieces of rough in the “old”days.  They did have nice colors in the pictures on the internet, but they were at best semifacet grade and were short sections of … Continue reading

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