Multi Spinel 4mm Table Cut Cube A Grade - 15-16 Inch Selenite igneous rock with high silica

igneous rock with high silica content

A variety of Andalusite

However in some regions

earrings or in smaller groups within a design

among other numerous names

Multi Spinel 4mm Table Cut Cube A Grade - 15-16 Inch Selenite igneous rock with high silicaSpinel 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.