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Stoppaniite Mineral Data
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General Stoppaniite Information
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 Chemical Formula: |
(Fe,Al,Mg)4(Na,[ ])2[Be6Si12O36]•2(H2O) |
| Composition: |
Molecular Weight = 1,190.23 gm |
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Sodium 1.82 % Na 2.45 % Na2O |
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Magnesium 1.37 % Mg 2.27 % MgO |
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Beryllium 4.54 % Be 12.61 % BeO |
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Aluminum 1.75 % Al 3.30 % Al2O3 |
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Iron 10.79 % Fe 13.88 % FeO |
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Silicon 28.32 % Si 60.58 % SiO2 |
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Hydrogen 0.34 % H 3.03 % H2O |
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Oxygen 51.08 % O |
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______ ______ |
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100.00 % 98.11 % = TOTAL OXIDE |
| Empirical Formula: |
Fe2+2.3Al0.77Mg0.67Na0.94Be6Si12O36•2(H2O) |
| Environment: |
Miarolitic cavities of a volcanic ejectum. The Fe+++ dominant analog of beryl. |
| IMA Status: |
Approved IMA 1996 (Dana # Added) |
| Locality: |
Capranica (Viterbo), Vico volcanic complex, Latium, Italy. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the mineral collector Francesco Saverio Stoppani (1947-). |
| Synonym: |
ICSD 85697 |
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IMA1996-008 |
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PDF 83-1024 |
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