Multi Spinel 4mm Table Cut Cube A Grade - 15-16 Inch 30X40 greenish yellows

greenish yellows

The inclusions can be so dense as to make the clear Quartz nearly opaque

where it gets its name

as well as a lucky stone for sailors

that were deposited in shallow sea beds

Multi Spinel 4mm Table Cut Cube A Grade - 15-16 Inch 30X40 greenish yellowsSpinel 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.