Prehnite 6mm Double Heart Faceted A Grade - 15-16 Inch grey_50_off These flecks glitter as they

These flecks glitter as they catch the light and may appear white against the dark blue of the glass

Rhyolite was named "streaming rock" because of its beautiful bands

aluminum oxide and other metal oxides

Ancient Egyptians sometimes buried their dead with amulets of Jasper for safe passage into the afterlife

Prehnite 6mm Double Heart Faceted A Grade - 15-16 Inch grey_50_off These flecks glitter as theyPrehnite was the first mineral to be named after a person: its discoverer, Dutch Colonel Hendrik Von Prehn. Von Prehn discovered the stone in South Africa in 1774. Prehnite is translucent to transparent, in colors from light green to yellow green to olive, with occasional inclusions of Black Tourmaline that crisscross the stone in fibrous patterns. It is a phyllosilicate composed of silicon, calcium and aluminum with trace amounts of iron.