Obsidiam Sphere

Black Obsidian sphere is a glassy luster rock formed from volcanic glass. it measures about 3.5 inches in diameter.

Obsidian is a defensive stone that shields from negative energy. Because of its sharpness, the stone is believed to pierce the shadow and expose the truth itself. Mayan prophets used obsidian as mirrors for scrying. Obsidian is a birthstone for Sagittarians.