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Changchengite Mineral Data
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General Changchengite Information
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 Chemical Formula: |
IrBiS |
| Composition: |
Molecular Weight = 433.27 gm |
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Bismuth 48.23 % Bi |
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Iridium 44.37 % Ir |
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Sulfur 7.40 % S |
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______ |
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100.00 % |
| Empirical Formula: |
IrBiS |
| Environment: |
Pt placer deposits derived from the host chromite ore bodies in dunite. |
| IMA Status: |
Approved IMA 1997 (Dana # Added) |
| Locality: |
Along a branch of the Luanhe River in Hebei Province, about 200 km ENE of Beijing, China. Link to MinDat.org Location Data. |
| Name Origin: |
Named after chancheng, the name of the "Great Wall" of China. |
| Synonym: |
IMA1995-047 |
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