Black Spinel 15mm Pinwheel - 8 Inch 48hr_08202024 occurring 10

occurring 10

This semi-translucent stone occurs in an array of hues

it is made up of volcanic glass

and has been discovered with artifacts from cultures of the Neolithic Period

Black Spinel 15mm Pinwheel - 8 Inch 48hr_08202024 occurring 10Spinel 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.