Changoite

A variety of Minerals

Changoite specimen - rock identification

What is Changoite?

Changoite is a rare zinc sulfate mineral with the formula Na2Zn(SO4)2·4H2O. Chagoite was discovered in the San Francisco Mine near Sierra Gorda, Antofagasta, Chile. The mineral is a zinc-analogue of blödite, cobaltoblödite, manganoblödite and nickelblödite - other representatives of the blödite group. In terms of chemistry changoite is somewhat similar to gordaite. The mineral's name comes from the early inhabitants of Chile - Changos. Traces of magnesium and calcium in changoite are negligible. Minerals associating with changoite are gypsum, zinc-bearing paratacamite, and thénardite.

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Changoite Localities Map

See where Changoite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

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North ZoneCentral RidgeSouth Basin

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Quick Facts

Physical Properties

Color
Colorless
Hardness (Mohs)
2 - 3
Density
2.507 g/cm³
Streak
White

Chemical Properties

Chemical Formula
Na2Zn(SO4)2 · 4H2O
Elements
H, Na, O, S, Zn
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