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Benjaminite Mineral Data
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General Benjaminite Information
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 Chemical Formula: |
(Ag,Cu)3(Bi,Pb)7S12 |
| Composition: |
Molecular Weight = 2,134.46 gm |
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Copper 2.23 % Cu |
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Silver 11.37 % Ag |
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Bismuth 48.95 % Bi |
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Lead 19.41 % Pb |
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Sulfur 18.03 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Ag2.25Cu0.75Bi5Pb2S12 |
| Environment: |
In a quartz vein near the contact of a soda-granite and an intrusive rhyolite. |
| IMA Status: |
Valid Species (Pre-IMA) 1924 |
| Locality: |
Outlaw Mine, 12 miles north of Manhattan, Nye Co. Nevada, USA. Link to MinDat.org Location Data. |
| Name Origin: |
For Dr. Marcus Benjamin (1857-1932), of the U.S. National Museum. |
| Name Pronunciation: |
Benjaminite + Pronunciation  |
| Synonym: |
ICSD 100734 |
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PDF 29-577 |
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