Multi Spinel 3mm Banded Faceted Round - 15-16 Inch Stone Type_Coral The cleaner facet from this

The cleaner facet from this cutting process results in significantly more sparkle than seen in stone cut by other methods

although the colors are much more muted

The mineral is named for the place where it is principally found

Rhodochrosite has a pearly luster and often displays banded patterning

Multi Spinel 3mm Banded Faceted Round - 15-16 Inch Stone Type_Coral The cleaner facet from thisSpinel 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 it is opaque as well, rendering its black especially deep and mysterious. Sometimes called the "Black Prince's Ruby" for its role in the English crown. It has been mistaken for ruby and sapphire at times, but can be distinguished by its structure and its lower relative hardness.