Tourmaline 4x4-8mm Banded Faceted Tube - 15-16 Inch North American Mined Stones It also assists in setting

It also assists in setting a pace and staying with that pace all day long

black with rainbow colors

and pattern

It occurs in bright turquoise blues and darker blues as well as rust reds

Purple Crazy Lace Agate is actually Mexican Crazy Lace Agate that has been color enhanced with purple to bring out the beautiful patterns in the stone

Tourmaline 4x4-8mm Banded Faceted Tube - 15-16 Inch North American Mined Stones It also assists in settingTourmaline 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