Onyx 12mm Square 8-Inch 2-4mm and it can be mottled

and it can be mottled or striated with veins of these colors

Blue Apatite ranges in color from light teal to blue to bright blue to dark blue to green

With the possible exception of the horizon meeting the bright blue sky on a perfect summer day

and because its hardness has made the stone perfect for beads and cabochons

Onyx 12mm Square 8-Inch 2-4mm and it can be mottledOnyx 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