Carletonite is a rare blue mineral that is very similar to Apophyllite, and often classified as a member of the Apophyllite group. It is usually multicolored with blue and white zones, and the blue can be a very intense shade. Carletonite was named after Carleton University in Ottawa, Ontario, where this mineral was first recognized.
Crystal Forms & Aggregates
Crystals are often prismatic rectangular crystals or in groups of such crystals. Crystals terminations are usually flat but occasionally have a pyramidal angle. Also tabular, in flattened cleavage fragments, and in crude masses of distorted crystals.