Turritella Agate Fossil Rock Tumbled 1-1.5 Inch w Info Card

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Turritella Agate Fossil Rock Tumbled .5-1 InchInformation Card Included   Some 40-60 millions years ago, an ancient salt water sea covered what is now the northwestern United States. A snail of the turritella specie lived in its shallow waters. The shell of this snail is a small, long tapering spire with numerous whorls. Today the fossil remains of the turritella shell are found on the edges of Delaney Rim in southcentral Wyoming. The shell material has been completely replaced by agate and chalcedony. Agate and chalcedony are names given to a microscopically crystallized variety of quartz, the main component of which is silica (SiO2).   This turritella agate has been tumbled and polished for weeks to give it a slick, shiny surface.Picture is representative of the specimen you will receive.  Each rock is unique and will vary in shape, size and appearance.  No two rocks will be exactly alike.Quantity: Turritella Agate Fossil Rock Origin: North America  Ages 8 and up