Rainbow Obsidian Puffy HeartShaped almost like a peach heart () and the sheen is almost velvety like in texture. Obsidian has a long history as a versatile tool and weapon material, with a reputation as a shamanic "mirror stone" in many ancient cultures for spiritual rituals. Rainbow obsidian is formed when quick cooling lava with silica creates a glassy obsidian with small mineral inclusions, producing a spectrum of colors when viewed from various angles. Known for its deep