Monthly Archives: November 2017

Copper’s limited roll in coloring Paraiba/cuprian tourmaline.

On my site you will find many examples of tourmaline gemstones that have their color influenced by trace amounts of copper in their makeup. With my spectrometer I can see the amount of light that is absorbed by the only … Continue reading

Posted in Cuprian Tourmaline, Introduction | Leave a comment

Paraiba and rarity, the dream of copper.

I have been motivated to make this post, by more than just ridiculous comments made about gemstones on the inter net. This does not mean that I don’t have a new pet peeve about the inter net. The newest one … Continue reading

Posted in Introduction | Leave a comment