Origin: Mined in Lyndhurst

particularly when used in gardens

Clarity:   Top crystal

These colors

Obsidian Sphere | Classic Natural Black Crystal | Huge 116mm, 4.57 in | 2.186 kg Zoisite Origin: Mined in LyndhurstObsidian is a naturally occurring volcanic glass formed when lava extruded from a volcano cools rapidly with minimal crystal growth. Pure obsidian is usually dark in appearance, though the color varies depending on the impurities present. Iron and other transition elements may give the obsidian a dark brown to black color. Most black obsidians contain nano inclusions of magnetite, an iron oxide. Very few samples of obsidian are nearly colorless. In