Black Spinel 10mm Natural Round - 15-16 Inch Shape_Mala Rhodonite belongs to the Pyroxenoid

Rhodonite belongs to the Pyroxenoid group of minerals

Pink Crazy Lace Agate is actually Crazy Lace Agate that has been color enhanced with pink to bring out the beautiful swirling and circular concentric patterns in the stone

near the Kennedy Ranges of Australia

This lava rolled across the landscape

Black Spinel 10mm Natural Round - 15-16 Inch Shape_Mala Rhodonite belongs to the PyroxenoidSpinel 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.