Cochise College          Photos of Minerals

                          Geology Home Page                

                          Roger Weller, geology instructor

                          wellerr@cochise.edu
                                  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