Prehnite Natural 6-7mm Table Cut Cube A Grade - 15-16 Inch rounds_part_four Hole Diameter: 0

Hole Diameter: 0

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

most natural topaz is colorless

Its color can be a soft pink

When the level of iron oxide is high

Prehnite Natural 6-7mm Table Cut Cube A Grade - 15-16 Inch rounds_part_four Hole Diameter: 0Prehnite 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.