Cochise College          Photos of Minerals

                          Geology Home Page                

                          Roger Weller, geology instructor

                          [email protected]
                                  copyright 2006-R.Weller
 

Mineral Information on:
kernite

Chemical Group:   borate

Chemical Formula:    Na₂B₄O₇.4H₂O

Color:  colorless to white                    Streak:  white

Hardness:  3                Specific Gravity:  1.953            Fracture:  splintery

Cleavage: 2 directions
 

Luster:  vitreous to pearly

Crystal Forms:  Monoclinic system

Mineral Associations:  ulexite

Identifying Characteristics:  slowly soluble in cold water

Uses:  source of borates

Occurrences:  Kern County, California

Toxicity:      when-swallowed-  poisonous          when inhaled-

Additional Information: