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Changoite Mineral Data
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General Changoite Information
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 Chemical Formula: |
Na2Zn(SO4)2•4(H2O) |
| Composition: |
Molecular Weight = 375.56 gm |
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Sodium 12.24 % Na 16.50 % Na2O |
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Zinc 17.41 % Zn 21.67 % ZnO |
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Hydrogen 2.15 % H 19.19 % H2O |
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Sulfur 17.08 % S 42.64 % SO3 |
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Oxygen 51.12 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Na2Zn(SO4)2•4(H2O) |
| Environment: |
Found as a product of oxidation in an old mining area. The zinc-dominant analogue of bl�dite and nickelbl�dite. |
| IMA Status: |
Approved IMA 1998 (Dana # Added) |
| Locality: |
2 km west of Sierra Gorda, northeast of Antofagasta, northern Chile. Link to MinDat.org Location Data. |
| Name Origin: |
Named after the changos, the early former inhabitants of northern Chile. |
| Synonym: |
IMA1997-041 |
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