Lithomancy is a form of divination using crystals. "Lithos" is the Greek word for stone. There are many different forms of crystal divination, some make use of colours, others of the star signs that rule the crystals and others use only stones of two colours to give a yes or no answer. In the traditional method 13 stones are used. Seven stones represent the ancient astrological signs: the Sun, Moon, Mars, Venus, Mercury, Jupiter and Saturn. The remaining six stones represent the home, life, love, life, luck, magic, and news.