Roger Weller, geology instructor
firstname.lastname@example.org copyright 2015-R.Weller
Apophyllite is a member of the zeolite family of silicate minerals. It is a hydrous
calcium potassium fluorosilicate. Apophyllite is usually colorless or white and it
can form pointy 4-sided pyramid terminations on crystals or resemble cubes with
beveled corners and edges.
Photo is copyright free only for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.