Orthorhombic
System Roger Weller, geology instructor
wellerr@cochise.edu
copyright 2008-R.Weller
wooden crystal model
model #160-1- sphenoidal group
(111)
rhombic sphenoid
an epsomite crystal form

Photo is copyright free for non-commercial educational
uses.
Just credit photo to R.Weller/Cochise College.