Amethyst Crystal Rough Clusters 155 Grams-amethyst is a variety of quartz and is a 6th anniversary gemstone. chakras –third eye chakra , crown chakra birthstone – february zodiac – virgo , sagittarius , caprocorn , aquarius , pieces planet – jupiter element – air, water typical colours – light slightly-pinkish violet to a deep grape purple amethyst is a powerful and protective stone