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An orthoproxene mineral
consisting of opaque rust to red glass with tiny flecks of glittering copper suspended within it
If you are a collector of cool rocks
The colors
This dye was said to create Michelangelo’s favorite shade of blue
Blue Tourmaline 3mm Round Faceted - Microfaceted Rounds - 15-16 inch Cantera Opal An orthoproxene mineralBlue 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
