This months stone is an opal but not only an opal but also a pink tourmaline. They are actually very pretty stones also. Also if you know someone that was born in October- you may want to add some snapdragons to their bouquet because that is there flower. Every month had a flower and a gemstone. October is a nice month … I have always been very fond of the opal stone. They are just so cool looking especially the really nice ones.