Prehnite, Quartz
Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA
This is a cabinet sized specimen of prehnite and quartz from the John T. Dyer Quarry, Birdsboro, Robeson Township, Berks County, Pennsylvania. This specimen is in the Hillman Hall of Minerals and Gems at the Carnegie Museum of Natural History, Pittsburgh, Pennsylvania (CM32077). This specimen is displayed with the museum’s case of Pennsylvania ...
© Jamison K. Brizendine