Rainbow obsidian is used in many types of jewelry due to its beautiful natural colors and mystical looks. These arrowheads, eggs, hearts, spheres, and pyramids are cut using high-powered water jet machines and tumble polished to create these shapes.Īnother popular form sold is a flat circle, oval, or other flat, smooth shapes that are used as a rainbow obsidian palm stone for meditation. Many tend to have a natural broken edge or a side that exposes the multicolored iridescence when held in the right direction with the sunlight.Ĭut forms can be purchased at shops all over the world in the shapes of an arrowhead, egg, heart, sphere, pyramid, and many other custom forms. In the raw form, they will have sharp edges and may be covered in dirt. Rainbow obsidian can be found raw in its natural rough state in the outdoors. In Mexico, the rainbow obsidian mostly comes from San Andreas in the Magdalena Municipality in Jalisco at the La Revoltosa Mine. In California, the most popular places to find vibrant rainbow obsidian is at the Rainbow Mine and Middle Fork Davis Creek. In Oregon, Glass Bute and Little Glass Bute mountains are the largest obsidian deposits in the world containing all types, including rainbow obsidian. Rainbow obsidian can be found near active and inactive ancient volcanic areas of the United States, specifically in Oregon and California, as well as Mexico, Scotland, and Italy. Gold, silver, green, blue, and violet colors bands are considered more common. The brighter and more vibrant the color can make it rare. What Rainbow Obsidian Colors are Rare?īright green, blue, and red colors in rainbow obsidian sheen can be rare. The colors in rainbow obsidian will have a varying degree of depth and spectrum based on the different types of minerals that were present in the lava before it cooled very quickly to form this crystal-like glass. The colors can also be formed by microscopic air bubbles refracting light. Rainbow obsidian colors are often formed by inclusions of minerals such as magnetite, quartz, and feldspars. During this process, other crystals are not able to form because of the lava cooling so quickly, resulting in the black and rainbow obsidian volcanic glass being formed. Natural rainbow obsidian is rhyolite in composition formed in volcanic felsic lava flows containing high amounts of silica that cools very quickly. If there is a clean side, it can be polished or cleaned to will reveal iridescent bands of blue, yellow, green, pink, gold, bronze, and violet colors. Raw rainbow obsidian may look mostly black or deep brown at first. Polishing or spraying water on it can help reveal its colors better when found outdoors to see if it is rainbow vs black obsidian. Rough rainbow obsidian has rough edges and looks completely black or dark brown until sunlight hits it to reveal its colors. Although natural rainbow obsidian properties tend to lean toward being a crystalline structure, it is actually considered a form of natural glass.
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