Devil Aquamarine 4mm Banded Faceted Round Bead - 15-16 Inch Size_5x6-7x9mm its oldest known use being

its oldest known use being in Egypt more than five thousand years ago

Herkimer Quartz

West African Jade is a complex Calcium Aluminum Silicate and is a Nephrite Jade

even when polished

Shattuckite is a pseudomorph

Devil Aquamarine 4mm Banded Faceted Round Bead - 15-16 Inch Size_5x6-7x9mm its oldest known use being"Devil Aquamarine" (or "Devil Blue Aquamarine") is a market term for natural aquamarine characterized by deep blue, dark tones, and inclusions of black tourmaline or other dark mineral beryl. Known for its high contrast, moody aesthetic, it often features a metallic sheen or silvery chatoyancy caused by internal structural healing, highly prized for jewelry, particularly in beaded bracelets.