Quartz comes in a rainbow of colors and is also known as rock crystal. Rose Quartz, Smokey Quartz and Citrine are some of the most popular forms of Quartz. Quartz is superb for meditation, healing prayers and self-healing. Quartz amplifies concentration and focus – and is said to bring the energy of the stars into the soul. A clear quartz wand is powerfully effective in all healing endeavors.
Quartz is recommended for all 12 signs, though some variants are specifically recommended.
(adapted from Love Is In the Earth: A Kaleidoscope of Crystals by Melody)