General Dickinsonite Information
|
 Chemical Formula: |
KNa4Ca(Mn++,Fe++)14Al(PO4)12(OH)2 |
| Composition: |
Molecular Weight = 2,132.64 gm |
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Potassium 0.92 % K 1.10 % K2O |
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Sodium 5.71 % Na 7.70 % Na2O |
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Lithium 0.07 % Li 0.14 % Li2O |
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Calcium 1.69 % Ca 2.37 % CaO |
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Manganese 24.73 % Mn 31.93 % MnO |
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Aluminum 1.01 % Al 1.91 % Al2O3 |
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Iron 10.21 % Fe 13.14 % FeO |
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Phosphorus 17.14 % P 39.27 % P2O5 |
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Hydrogen 0.18 % H 1.65 % H2O |
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Oxygen 38.34 % O |
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______ ______ |
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100.00 % 99.21 % = TOTAL OXIDE |
| Empirical Formula: |
K0.5Li0.2Na5.3Ca0.9Mn2+9.6Fe2+3.9Al0.8(PO4)11.8(OH)3.9 |
| Environment: |
High temperature (800 deg C) primary mineral in granite pegmatites. |
| IMA Status: |
Discredited IMA 2005 - Dana # Changed from 41.7.2.2 |
| Locality: |
Branchville, Fairfield County, Connecticut, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Reverend John William Dickinson (1835-1899), Redding, Connecticut, USA, an early collector of Branchville minerals. Dickinsonite is now the group name. |
| Name Pronunciation: |
Dickinsonite + Pronunciation  |
| Synonym: |
ICSD 100870 |
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PDF 43-1466 |
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