Cochise College          Photos of Minerals

                          Geology Home Page                

                          Roger Weller, geology instructor

                                  copyright 2010-R.Weller



Mineral Information on:

Chemical Group:  silicate

Chemical Formula: 

Color:  blue green to light green             Streak:  pale greenish white


Hardness:                 Specific Gravity:  2.96                Fracture:

Luster: dull to vitreous

Cleavage: 1, perfect

transparent to translucent


Crystal Forms:

Habit:  massive or platy

Mineral Associations:

Identifying Characteristics:



Toxicity:      when-swallowed-                            when inhaled-

Locations: Ajo, Arizona; Wickenberg, Arizona; South Africa

Additional Information: