Multi Spinel 3mm Table Cut Cube - AA Grade - 15-16 Inch 6X8mm Bird’s Eye Rhyolite is named

Bird’s Eye Rhyolite is named for its circular color formations of deep reds

Amber is a yellow

Its inclusions of golden tones to rust to red are due to traces of hematite embedded in the stone

rendering its black especially deep and mysterious

red and magenta hues

Multi Spinel 3mm Table Cut Cube - AA Grade - 15-16 Inch 6X8mm Bird’s Eye Rhyolite is namedSpinel 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.