anniversary.If you were born in October, then tourmaline is your birthstone.
Tourmaline also commemorates the 8th wedding anniversary.
Tourmaline may be found in a great variety of colors, but green,
pink and a rare mix between the two called watermelon are 
the
most commonly found made into jewelry.
Tourmaline is a member of the tourmaline mineral group. Tourmaline has a hardness of 7 - 7.5 and a specific gravity of 3.06. Tourmaline is found in Brazil, Pakistan and Zimbabwe.