Changoite
A variety of Minerals

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
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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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