The birthstones for August are peridot, spinel, and sardonyx
. Peridot is a yellowish green to greenish yellow gemstone, known for being formed under extreme conditions, and is the most widely recognized birthstone for August
. Spinel is a gemstone that can resemble a ruby or sapphire and has been recently added to the list of August birthstones
. Sardonyx is a reddish zebra-striped gemstone with white bands, and it is the original August birthstone with a history that dates back more than 4,000 years
