Prehnite 4mm Round AAA Grade - 15-16 Inch 16-inch Rounds oil and succinic acid

oil and succinic acid

Emerald and Heliodore -- and is often cut to highlight its chatoyant qualities

or add to your favorite chain to make a sweet

bubbles and crystal-rich layers that form as lava flows onto the surface of stone —

Sardonyx is sometimes treated to bring out its reddish tones

Prehnite 4mm Round AAA Grade - 15-16 Inch 16-inch Rounds oil and succinic acidPrehnite 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.