The crystals are typically arranged in ascending order, with the root chakra at the bottom and the crown chakra at the top. The 7 chakras are- Root chakra, denoted by Red, Sacral chakra by Orange, Solar plexus chakra by Yellow, Heart chakra by Green, Throat chakra by Blue, Third eye chakra by Indigo and Crown chakra denoted by Purple. The 7 chakra tree promotes balance and healing in the body by stimulating the chakras. It is often used as a meditation tool or for Feng shui purposes.