White Howlite 2x4mm Tube Beads - 15-16 Inch 12x20mm until the 17th century Crystal

until the 17th century Crystal Quartz was believed to be permanently frozen water

calcium carbonate and other materials

brown and orange

Nylon Jaw Pliers

The most common members of the feldspar group are the plagioclase feldspars and the alkali feldspars

White Howlite 2x4mm Tube Beads - 15-16 Inch 12x20mm until the 17th century CrystalWhite Howlite is named for Canadian mineralogist Henry How, who first discovered the stone in Southern California in 1868. It is typically white or light gray with gray, black or brown veins running through it in web to like patterns. Because of its softness, Howlite can be easily dyed and is often treated to be blue for use as a substitute for turquoise.