Cochise College          Photos of Minerals

                          Geology Home Page                

                          Roger Weller, geology instructor

                          [email protected]
                                  copyright 2010-R.Weller

Mineral Information on:
leadhillite

Chemical Group:   carbonate  (and sulfate)

Chemical Formula:   Pb₄SO₄(CO₃)₂(OH)₂

Color:  colorless, white, sky blue, pale sea green, yellow, gray

Streak:  white

Hardness:   2.5                Specific Gravity:  6.26 to 6.55 

Luster:  resinous to adamantine, cleavage is pearly              

Fracture:

Cleavage: 1 direct perfect, 1 direction poor

Crystal Forms:  Monoclinic System, pseudo-hexagonal form due to twinninh

Mineral Associations:

Identifying Characteristics:

Uses:

Occurrences: 

Toxicity:      when-swallowed-    don't                when inhaled-   don't

Additional Information:  some specimens are fluorescent orange