Roger Weller, geology instructor
email@example.com copyright 2010-R.Weller
Entire specimen is larger than 2 feet across.
Photo is copyright free only for non-commercial educational uses.
Credit photo to R.Weller/Cochise College and the Natural History Museum.
To see this
mineral and other fine mineral specimens,
visit the Natural History Museum,
900 Exposition Blvd., Los Angeles, California 90007