Prehnite 6mm Double Heart Faceted A Grade - 15-16 Inch 20210720 It is a variety of

It is a variety of the mineral corundum

As a Serpentine

Available in a wide array of colors

Mined in: Madagascar

Prehnite 6mm Double Heart Faceted A Grade - 15-16 Inch 20210720 It is a variety 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.