Cochise College          Photos of Minerals

                          Geology Home Page                

                          Roger Weller, geology instructor

                                  copyright 2010-R.Weller



Mineral Information on:

Chemical Group:  phosphate

Chemical Formula:

Color:  azure blue, bright indigo blue, pale sky blue                   

Streak:  pale blue to white


Hardness:  5.5 to 6                 Specific Gravity:    3.1             

Fracture:  uneven

Cleavage: 1 direct, distinct

Luster:  vitreous to dull


Crystal Forms: Monoclinic system, distorted octahedrons, tabular crystals

Mineral Associations:

Identifying Characteristics:



Toxicity:      when-swallowed-                            when inhaled-

Additional Information: