THE CAPRICORN was created with accents of green zebra jasper& smoky quartz. available in black onyx, howlite and lava rock. capricorn is a cardinal earth sign, ruled by the planet saturn and is represented by the goat. green zebra jasper promotes optimism, smoky quartz neutralizes negative energy. the black onyx option brings protection. the howlite option brings peace. the lava rock option can be used for aromatherapy with essential oils.