These beautiful gemstone beads and pendants are cut from the well-known variety of rhyolite also known as rainforest jasper. The alternate name is no surprise considering the semiprecious gemstone's swirls of greens, browns, orange (rust), tans, and grays. Various forms of rhyolite look similar to jaspers, but are in fact igneous rock that is chemically identical to granite. The stone originated when very thick rhyolitic magma and lava cooled from a molten state too quickly for crystals to form (in other words, they were thrown from volcanoes in eruptions). This "rainforest" variety of rhyolite often displays interesting banding. Rhyolite beads represents change, variety, and progress.