Prehnite with Epidote 7x8mm Faceted Rice Bead - 15-16 Inch Glass This material is actually Serpentine

This material is actually Serpentine

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Prehnite with Epidote 7x8mm Faceted Rice Bead - 15-16 Inch Glass This material is actually SerpentinePrehnite 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.