Cochise College          Photos of Minerals

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                          Roger Weller, geology instructor

                          wellerr@cochise.edu
                                  copyright 2006-R.Weller
 

Mineral Information on:
adamite

Chemical Group:   hydroxide

Chemical Formula:   Zn₃As₂O₈.Zn(OH)₂

Color:  honey yellow, violet, rose red, green, colorless

Hardness:  3.5       Specific Gravity:    4.34 to 4.35                  Fracture:

Cleavage:

Crystal Forms:  Orthorhombic system
     Tends to form small crystals (drusy coatings)

Mineral Associations:  a rare mineral associated with zinc deposits

Identifying Characteristics:

Uses:

Occurrences:  Greece, France, Chile, Algeria: Tseumb, Africa

Toxicity:      when-swallowed- very high           when inhaled-very high

Additional Information: