Dakota Stones - Black

Spinel is a hard vitreous magnesium aluminum oxide, and comes in a range of other colors, but those varieties are transparent. Black Spinel not only has the dark color, but...

Onyx 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...