General Boltwoodite Information
|
 Chemical Formula: |
HK(UO2)(SiO4)•1.5(H2O) |
| Composition: |
Molecular Weight = 429.24 gm |
| |
Potassium 9.11 % K 10.97 % K2O |
| |
Uranium 55.45 % U 62.91 % UO2 |
| |
Silicon 6.54 % Si 14.00 % SiO2 |
| |
Hydrogen 0.94 % H 8.39 % H2O |
| |
Oxygen 27.96 % O |
| |
______ ______ |
| |
100.00 % 96.27 % = TOTAL OXIDE |
| Empirical Formula: |
HK(UO2)(SiO4)•1.5(H2O) |
| Environment: |
In the outer silicate zone of alteration surrounding hydrated uranyl oxides incrusting primary uraninite; also filling fractures at some distance from primary uraninite. |
| IMA Status: |
Valid Species (Pre-IMA) 1956 |
| Locality: |
In the USA, from the Delta mine, Emery Co., Utah; the New Method mine, near Amboy, San Bernardino Co., California. Link to MinDat.org Location Data. |
| Name Origin: |
For Bertram Borden Boltwood (1870-1927), radiochemist of Yale University, New Haven, Connecticut, USA, who devised the U-Pb method of measuring geologic time. |
| Name Pronunciation: |
Boltwoodite + Pronunciation  |
| Synonym: |
ICSD 86631 |
| |
Nenadkevite |
| |
PDF 35-490 |
| |
