MATTE Onyx 8mm Faceted Rondelle 8-Inch Cut It is named for the

It is named for the Amazon River in Brazil

The presence of Manganese within the stone produces the purple hue

They are all varieties of the mineral corundum

cacao de nance

It can even exhibit various colors within the same specimen

MATTE Onyx 8mm Faceted Rondelle 8-Inch Cut It is named for theOnyx 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