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Giuseppettite Mineral Data
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General Giuseppettite Information
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 Chemical Formula: |
[Na42K16Ca6]S64Si48Al48O192(SO4)10Cl2•5H2O |
| Composition: |
Molecular Weight = 8,668.33 gm |
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Potassium 7.22 % K 8.69 % K2O |
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Sodium 11.14 % Na 15.02 % Na2O |
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Calcium 2.77 % Ca 3.88 % CaO |
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Aluminum 14.94 % Al 28.23 % Al2O3 |
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Silicon 15.55 % Si 33.27 % SiO2 |
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Hydrogen 0.12 % H 1.04 % H2O |
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Sulfur 3.70 % S 9.24 % SO3 |
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Chlorine 0.82 % Cl 0.82 % Cl |
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- %
Cl -0.18 % -O=Cl2 |
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Oxygen 43.74 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
Na42K16Ca6Al48Si48O192(SO4)10Cl2•5(H2O) |
| Environment: |
As veinlets in a block of sanidinite volcanic ejecta. |
| IMA Status: |
Approved IMA 1981 |
| Locality: |
At Sacrafano, in the Biachella Valley, Lazio, Italy. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Giuseppe Giuseppetti, Professor of Mineralogy, University of Pavia, Pava, Italy. |
| Name Pronunciation: |
Giuseppettite + Pronunciation  |
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