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Articles About Semiprecious Gemstones

Tourmaline

Currently 3.25/5 1 2 3 4 5 Rating 3.3/5 (4 votes) Colors are pink, red, green, yellow, blue, green, and clear. Tourmaline is a complex crystalline silicate containing aluminum, boron and other elements. Tourmaline appears in blue, yellow, pink, red, black, green and clear.