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Vajdakite Mineral Data
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General Vajdakite Information
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 Chemical Formula: |
[(MoO2)2(H2O)2As2O5]•(H2O) |
| Composition: |
Molecular Weight = 535.57 gm |
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Molybdenum 34.04 % Mo 51.06 % MoO3 |
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Arsenic 27.98 % As 36.94 % As2O3 |
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Hydrogen 1.24 % H 11.10 % H2O |
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Oxygen 36.74 % O |
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______ ______ |
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100.00 % 99.10 % = TOTAL OXIDE |
| Empirical Formula: |
Mo1.9As2O9•3.3(H2O) |
| Environment: |
On fractures in proximity to an ore vein. Formed by concentrated sulfuric acid in the presence of As2O3. |
| IMA Status: |
Approved IMA 1999 (Dana # Added) |
| Locality: |
Jachymov, NW Bohemia, Czech Republic. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Josef Vajdak (1930-), for his significant contribution in the study of minerals in the Jachymov ore district. |
| Synonym: |
IMA1998-031 |
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