Prehnite 8mm Coin Faceted A Grade - 15-16 Inch ADDED8INCH10062022 and because its hardness has

and because its hardness has made the stone perfect for beads and cabochons

It's a stunning specimen

Distinctive for its purple-and-gray tones

depositing copper and other elements that gradually develop into turquoise

cut as rounds are somewhat opaque and powerfully radiant -- fitting since its name originates from the Greek word for "moon

Prehnite 8mm Coin Faceted A Grade - 15-16 Inch ADDED8INCH10062022 and because its hardness hasPrehnite 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.