Calcite
Photos
Roger Weller, geology instructor
wellerr@cochise.edu copyright 2011-R.Weller
calcite, blue-2
closer view
Swakopmund, S.W. Africa
The characteristic
rhombohedral cleavage of calcite is quite apparent.

calcite
842
Photo is copyright free for
non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.