The identify "aquamarine" comes from the Latin for "seawater", as well as stones were thought to guard seafarers. Some associate aquamarines with marital contentment and exceptional intellect. Tourmaline is not an primary birthstone for Oct. It had been added to most birthstone lists in 1952. Some lists specify "pink tourmaline" https://www.gemsbiz.com/blog/explore/the-july-birthstone-ruby