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