Rainbow Obsidian heart from Nuevo Leon in Mexico

Rainbow obsidian is one of the milder types, but with powerful protective properties. It absorbs negative energy from the aura and removes stress from the body. It complements the energy of the heart and cuts through bonds of old love. You will get to know your spiritual nature through it. The color of obsidian varies quite strongly, depending on the contaminants it contains. The color is darkest to deep black, although granite with a comparable composition is a light-colored material. Usually, particularly finely divided hematite or magnetite is the cause of this. Snowflake obsidian contains inclusions of globularally grown structures, most of feldspar or cristobalite, which are called spherulites. They arise from spherical crystal growth from a single central growth nucleus. Obsidian is a metastable material that falls back in the long term in its crystalline, more stable form. Volcanic glass is not known from the Paleozoic and Precambrian. In the Stone Age obsidian was a coveted raw material because it forms razor-sharp cutting edges. It was used for knives and weapons. [Source?] Nowadays it is a popular material for art objects and is also used as a gemstone in jewelery. It is then ground as if it were a crystal.