Cochise College          Photos of Minerals

                          Geology Home Page                

                          Roger Weller, geology instructor

                                  copyright 2006-R.Weller

Mineral Information on:

Chemical Group:    phosphate

Chemical Formula:   

Color:  white, yellow, green, gray, brown, black          Streak:  white


Hardness:  3.25 to 4           Specific Gravity:  2.316 to 2.337

Fracture:  uneven to subconchoidal        Transparency:  translucent

Luster:  vitreous to pearly to resinous

Cleavage:  2 directions


Crystal Forms:  Orthorhombic system
     Tends to form spheres with a radiating structure.

Mineral Associations:

Identifying Characteristics:


Occurrences:  Magnet Cove near Hot Springs, Arkansas 

Toxicity:      when-swallowed-                            when inhaled-

Additional Information: