Black Spinel 2-3x5-6mm Faceted Irregular Tyre Beads - 8-Inch Size_18x25-20x30mm manganese and other metallic oxides

manganese and other metallic oxides captured during the forming of the rock

The Pilbara region is known for its ancient landscapes

initially as tools because of its hardness

It is known for its abstract designs in rusty red

** Yellow quartz is thought to enhance clarity

Black Spinel 2-3x5-6mm Faceted Irregular Tyre Beads - 8-Inch Size_18x25-20x30mm manganese and other metallic oxidesSpinel 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.