Sauconite
Friedensville Mine, Friedensville, Saucon Valley, Upper Saucon Township, Lehigh County, Pennsylvania, USA
The zinc rich Phyllosilicate Sauconite, a mineral likely derived from the alteration of Sphalerite. Type locality specimen from the Friedensville Mine, Friedensville, Saucon valley, Lehigh Co, Pennsylvania. Specimen size: 3 x 4cm. From the PA Annex of my personal collection, acquired in 2003.
© 2004 M. R. Heintzelman