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Melanophlogite Mineral Data
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General Melanophlogite Information
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 Chemical Formula: |
SiO2•n(C,H,O,S) |
| Composition: |
Molecular Weight = 2,929.11 gm |
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Silicon 44.11 % Si 94.36 % SiO2 |
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Hydrogen 0.78 % H 6.95 % H2O |
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Carbon 0.82 % C |
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Sulfur 0.55 % S 1.09 % SO2 |
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Oxygen 53.75 % O |
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______ ______ |
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100.00 % 102.40 % = TOTAL OXIDE |
| Empirical Formula: |
46(SiO2)C2H22.6O5.4(SO2)0.5 |
| Environment: |
A late-stage, low-temperature mineral with large, clathrate voids which host CH4, CO2, and N2. Stable below 40-65 deg. C. |
| IMA Status: |
Valid Species (Pre-IMA) 1876 |
| Locality: |
In Italy, at Solfatara Giona, Racalmuto, and at Caltanissetta, Sicily. Link to MinDat.org Location Data. |
| Name Origin: |
From the Greek for "black" and "to be burned" in allusion to the fact that some specimens blacken on heating. Low temperature form. |
| Name Pronunciation: |
Melanophlogite + Pronunciation  |
| Synonym: |
ICSD 30791 |
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Melanophlogite-alpha |
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PDF 27-7 |
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