Prehnite Natural 6-7mm Table Cut Cube A Grade - 15-16 Inch rounds_part_four Zoisite occurs as prismatic

Zoisite occurs as prismatic

that were deposited in shallow sea beds

most natural topaz is colorless

Blood Quartz is a clear to milky-white silicon dioxide mineral

Its color can be a soft pink

Prehnite Natural 6-7mm Table Cut Cube A Grade - 15-16 Inch rounds_part_four Zoisite occurs as prismaticPrehnite 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.