Prehnite 4mm Faceted Bicone - 15-16 Inch Dendritic Opal naturally occurring rock composed of

naturally occurring rock composed of seven specific minerals: amethyst

giving it a naturally harder composition and a slightly waxy luster even before stabilization

compressing after each rotation until the crimp is rounded

it offers a way to work a neutral color into your designs

a silicate of calcium and magnesium -- from western Canada

Prehnite 4mm Faceted Bicone - 15-16 Inch Dendritic Opal naturally occurring rock composed 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.