Onyx 8mm Faceted Rondelle 8-Inch R0437 white and occasionally gray or

white and occasionally gray or brown

and may also be referred to as Jacktree

Howlite can be easily dyed and is often treated to be blue for use as a substitute for turquoise

and brown as well as pink

Onyx 8mm Faceted Rondelle 8-Inch R0437 white and occasionally gray orOnyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all black stone, and much of the black Onyx on the market has been artificially colored. Onyx has been both revered and feared throughout history. It is referenced in many sacred texts and historical manuscripts and is the first precious stone mentioned in the Bible. However in some regions, such as China, it was feared for centuries as a bad luck