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Howardevansite Mineral Data
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General Howardevansite Information
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 Chemical Formula: |
NaCu++Fe+++2(VO4)3 |
| Composition: |
Molecular Weight = 543.05 gm |
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Sodium 4.23 % Na 5.71 % Na2O |
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Vanadium 28.14 % V 50.24 % V2O5 |
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Iron 20.57 % Fe 29.41 % Fe2O3 |
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Copper 11.70 % Cu 14.65 % CuO |
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Oxygen 35.35 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
NaCuFe3+2(VO4)3 |
| Environment: |
Forms by sublimation around furaroles on an andesitic volcano. |
| IMA Status: |
Approved IMA 1988 |
| Locality: |
Izalco volcano, El Salvador. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Howard Tasker Evans, Jr. (1919-2000), American mineralogist and crystallographer, U.S.G.S., Reston, Virginia, USA. |
| Name Pronunciation: |
Howardevansite + Pronunciation  |
| Synonym: |
ICSD 202529 |
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PDF 42-1333 |
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