Black Spinel 20x25mm Faceted Nugget Pendant Stone Type_Rhodochrosite Unlike other forms of opal

Unlike other forms of opal

When they're dry

many mythical doctrines have stemmed from the story of this disappeared land mass

Treated quartz that results in a unique blue color

as well as other non-standard crimp bead and tube sizes

Black Spinel 20x25mm Faceted Nugget Pendant Stone Type_Rhodochrosite Unlike other forms of opalSpinel 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.