Cochise College          Photos of Minerals

                          Geology Home Page                

                          Roger Weller, geology instructor

                          [email protected]
                                  copyright 2010-R.Weller

Mineral Information on:
caledonite

Chemical Group:       sulfate  (and a carbonate)

Chemical Formula:   Cu₂Pb₅CO₃(SO₄)₃(OH)₆

Color:     green, light blue, blue to blue-green         
 

Streak:  greenish white to bluish green

Hardness:   2.5 to 3              Specific Gravity:    5.6 to 5.8             

Fracture:  uneven

transparent to translucent

Cleavage: 1 direct perfect, 2 poor

Crystal Forms:  Orthorhombic system. crystals often striated

Mineral Associations:

Identifying Characteristics:

Uses:

Occurrences: 

Toxicity:      when-swallowed-                            when inhaled-

Additional Information: