Blue Tourmaline 3mm Round Faceted - Microfaceted Rounds - 15-16 inch Cantera Opal If you are a collector

If you are a collector of cool rocks

calcium carbonate and other materials

Cat’s Eye is a quartz stone that appears in a range of colors including white

An orthoproxene mineral

ranges in color from light to dark green

Blue Tourmaline 3mm Round Faceted - Microfaceted Rounds - 15-16 inch Cantera Opal If you are a collectorBlue 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