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Blue Tourmaline ranges in color from green to blue to yellow to green with black, milky white and clear, colorless inclusions. It is an aluminum borosilicate mixed with iron, magnesium and other metals that give it its color. Tourmaline occurs in nearly every color in the rainbow and its name derives from “turmali,” the Sinhalese word for “mixed color precious stone.” Tourmaline is unusual in that it is both pyroelectric and piezoelectric, meaning it becomes magnetically charged from heat or friction.
