Onyx 8mm Faceted Rondelle 8-Inch R0437 commonly known as Limestone

commonly known as Limestone

gray and purple

and the material has not been treated with dye

so treat it gently

white and occasionally gray or brown

Onyx 8mm Faceted Rondelle 8-Inch R0437 commonly known as LimestoneOnyx 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