Prehnite 8mm Double Heart Faceted - 15-16 Inch hps_03192026 It is also one of

It is also one of the hardest

who first catalogued the stone in 1902

We offer these portions in rounds so that you can add a bit of the universe to your jewelry designs

Our Jade is one of two mineral varieties -- nephrite

Prehnite 8mm Double Heart Faceted - 15-16 Inch hps_03192026 It is also one 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.