Cochise College          Photos of Minerals

                          Geology Home Page                

                          Roger Weller, geology instructor

                                  copyright 2010-R.Weller


Mineral Information on:

Chemical Group:  arsenate

Chemical Formula:    

Color:   bright yellow, waxy-yellow, colorless                                                                      


Hardness:  4.5 to 5                Specific Gravity:   3.98 to 4.01             

Cleavage:  imperfect

Luster:  vitreous

Tenacity:  brittle


Crystal Forms:  Monoclinic System; prismatic crystals,
                               sheathlike aggregates

Mineral Associations:

Identifying Characteristics:



Toxicity:      when-swallowed-                            when inhaled-

Additional Information: