Cochise College          Photos of Minerals

                          Geology Home Page                

                          Roger Weller, geology instructor

                          [email protected]
                                  copyright 2006-R.Weller
 

Mineral Information on:
glauberite

Chemical Group:    sulfate   

Chemical Formula:    Na₂SO₄.CaSO₄

Color:  pale yellow, gray, brick red               Streak:  white  

Taste:  slightly saline             Fracture:   conchoidal

Hardness:  2.5 to 3            Specific Gravity:  2.7 to 2.85               

Cleavage:   one direction, perfect  

Crystal Forms: Monoclinic system
   tabular crystals

Mineral Associations:  occurs in salt deposits 

Identifying Characteristics: 

Uses: 

Occurrences:   Verde Valley, Arizona and Borax Lake, California

Toxicity:             when inhaled-

Additional Information:  partially dissolvable by water