Blue Tourmaline 3mm Banded Faceted Round - 15 Inch Stone Type_Spiny Oyster decays and is exposed to

decays and is exposed to mineral-rich water

which is itself a form of Muscovite

Its inclusions of red

sodalite and pyrite

Blue Tourmaline 3mm Banded Faceted Round - 15 Inch Stone Type_Spiny Oyster decays and is exposed toBlue 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