Cochise College          Photos of Minerals

                          Geology Home Page                

                          Roger Weller, geology instructor

                                  copyright 2006-R.Weller

Mineral Information on:

Chemical Group:   carbonate

Chemical Formula:  

Color:  pale asparagus green, apple green, white, gray, yellow, yellowish brown 
Streak:   white              Luster:  vitreous to resinous


Hardness:  3.5 to 4           Specific Gravity:   3.680 to 3.714               

Fracture:  uneven            Tenacity:   brittle

Cleavage:   (110)  perfect                
     Crystals are often acicular. like aragonite.
     Tends to form pseudo-hexagonal twins.

Transparency:  transparent to translucent


Crystal Forms:    Orthorhombic system

Mineral Associations:  Commonly found in veins in limestones.

Identifying Characteristics:

Uses:  strontium ore

Occurrences:  New York

Toxicity:      when-swallowed-                            when inhaled-

Additional Information: