Prehnite Natural 8mm Bicone Faceted - 15-16 Inch Gemstone it offers a way to

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

Turquoise is one of the oldest known gemstones

the resulting rock is dark gray to deep black in color and riddled with pits and holes where air was trapped in the stone

creativity

occasionally mingled with rust-brown

Prehnite Natural 8mm Bicone Faceted - 15-16 Inch Gemstone it offers a way toPrehnite 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.