Colemenite is found in California, USA. It is a monoclinic gemstone that is colourless.
Colemanite is a related mineral to Tunellite (see tunellite), and shares most of its properties. Unlike tunellite, colemanite has a stronger connection with the Crown Chakra, and an extremely light, open, playful energy, more faery and more spiritual than physical, although it can still be helpful in treating the same areas and physical symptoms. As with tunellite, it strongly affects heart and lungs, increases energy flow, and induces a deep state of meditation.