Tourmaline the primary birthstone is rare because it is one of the few gems that can be found in almost every color. The sapphire gem is given on the 5th 45th and 70th wedding anniversary as a gift. October birthstones opal and tourmaline.
Tourmaline the primary birthstone is rare because it is one of the few gems that can be found in almost every color. The sapphire gem is given on the 5th 45th and 70th wedding anniversary as a gift. October birthstones opal and tourmaline.