150CTS Black spinel graduated faceted pears.
Black spinel stone is a rare gemstone made up of hard vitreous magnesium aluminium oxide or magnesium aluminate. Specifically, black spinel is one of the rarest minerals that comes from the Spinel family and is a true gemstone often confused with black tourmaline. It's said that the name 'Spinel' comes from the Latin, 'spina' meaning thorn – this refers to the sharp crystal formations it's made up of.
The beads on this 18cm (15) strand with spacers are between approximately 13x10mm and 19x12mm in size.
Origin : Thailand