Petro Tourmaline 3mm Banded Faceted Round - 15 Inch #1110 bubbles and crystal-rich layers that

bubbles and crystal-rich layers that form as lava flows onto the surface of stone —

this smooth  Labradorite pebble is truly a beautiful specimen

and forms naturally as a glassy

Wood Opalite occurs in a range of colors

Petro Tourmaline 3mm Banded Faceted Round - 15 Inch #1110 bubbles and crystal-rich layers thatTourmaline is classified as a semiprecious stone and occurs in a vast array of colors, everything from colorless to black, from pastel to bright to dark. It can even exhibit various colors within the same specimen. Its name derives from the Sinhalese word turamali, which translates to stone of many colors. Due to this variety of colors, Tourmaline has often been confused with other stones. Many stones in the Russian crown jewels from the 17th century