Blue Tourmaline 2mm Round Faceted AAA Grade - Microfaceted Rounds - 15-16 inch Donut This turquoise is mined from

This turquoise is mined from the Sonora mines in Mexico

gray and white

Artistic Stone has beautiful

Petrified wood is created through a process called permineralization

but rather a dark variety of Carnelian

Blue Tourmaline 2mm Round Faceted AAA Grade - Microfaceted Rounds - 15-16 inch Donut This turquoise is mined fromBlue 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