Prehnite 6mm Coin Faceted A Grade - 15-16 Inch 48hr_08152023 initially as tools because of

initially as tools because of its hardness

a green-colored mineral

but rather a dark variety of Carnelian

Rhodonite belongs to the Pyroxenoid group of minerals

Prehnite 6mm Coin Faceted A Grade - 15-16 Inch 48hr_08152023 initially as tools because ofPrehnite 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.