Smithsonite

What is it made of?
It is made of zinc, carbon and oxygen. It is a calcite group mineral.
Other minerals in specimen.
Cerussite
Where was it found?
Tsumeb, Otavi, Namibia.
What is it used for?
Smithsonite can be a source of zinc. Zinc is mainly used as a protective coating for iron and steel. Zinc is also mixed with copper to make brass.
Actual size
10 x 8cm