Argillite Photos Cochise College
Photos of Rocks Metamorphic Rocks
Virtual Geology Museum Hall of Rocks
Argillite Photos Roger Weller, geology instructor
wellerr@cochise.edu copyright 2007-R.Weller
argillite, variety catlinite-A
closer view
Sioux Falls, South Dakota
Catlinite is also known as pipestone.
Photo is copyright free for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.