Blue Tourmaline 3mm Banded Faceted Round - 15 Inch Raindrop Azurite This material dates back 29

This material dates back 29 million years and has been used in early civilizations as tools similar to obsidian

It is not a granite

they come in a rainbow of colors besides red

They symbolize the Third Eye of Hindu Lord Shiva

Blue Tourmaline 3mm Banded Faceted Round - 15 Inch Raindrop Azurite This material dates back 29Blue 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