Cochise College          Photos of Minerals

                          Geology Home Page                

                          Roger Weller, geology instructor

                                  copyright 2006-R.Weller

Mineral Information on:

Chemical Group:  silicate

Chemical Formula: 

Color:  white                  Streak:  white

Hardness:  5 to 6          Specific Gravity:   2.98 to 3.35                 Fracture:

Luster:  vitreous

Cleavage:  one direction, perfect


Crystal Forms:   Monoclinic system
    Occurs as aggregates of long, prismatic crystals, fibrous masses, or fine-grained

Mineral Associations:  low and medium grade metamorphic rocks , such as metamorphosed dolomitic limestone.

Identifying Characteristics:  color and mineral habit

Uses:  when fibrous as insulation (health hazard)