Candlemas-amethyst, garnet, onyx, turquoise Spring Equinox- amethyst, aquamarine, bloodstone, red jasper Beltane- emerald, orange carnelian, sapphire, rose quartz Summer Solstice- all green gemstones, esp. jade and emerald Lammas- aventurine, citrine, peridot, sardonyx Autumn Equinox- carnelian, lapis, lazuli, sapphire, yellow agate Samhain- all black gemstones, esp. jet, onyx and obsidian
Winter Solstice- cat's eye, ruby