Onyx 10mm Round Step Cut - 15-16 Inch Tuxedo Agate this semi-precious variety of quartz

this semi-precious variety of quartz is found in many locations around the world

When this combination crystallized

Red Botswana Agate displays highly defined parallel banding

all to knowing eye

Onyx 10mm Round Step Cut - 15-16 Inch Tuxedo Agate this semi-precious variety of quartzOnyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all to 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