Chemical Formula:
|
(Pb,Y,U,Ca)2-xNb2O6(OH) |
Composition:
|
Molecular Weight = 484 g |
|
|
|
Hydrogen |
0.10 % |
H |
0.93 % |
H2O |
0.00 % |
|
|
|
Oxygen |
22.15 % |
O |
0.00 % |
|
0.00 % |
|
|
|
Silicon |
1.16 % |
Si |
2.48 % |
SiO2 |
0.00 % |
|
|
|
Calcium |
0.83 % |
Ca |
1.16 % |
CaO |
0.00 % |
|
|
|
Iron |
2.31 % |
Fe |
2.97 % |
FeO |
0.00 % |
|
|
|
Yttrium |
3.67 % |
Y |
4.67 % |
Y2O3 |
0.00 % |
|
|
|
Niobium |
26.87 % |
Nb |
38.44 % |
Nb2O5 |
0.00 % |
|
|
|
Tantalum |
3.74 % |
Ta |
4.56 % |
Ta2O5 |
0.00 % |
|
|
|
Lead |
34.25 % |
Pb |
36.89 % |
PbO |
0.00 % |
|
|
|
Uranium |
4.92 % |
U |
5.91 % |
UO3 |
0.00 % |
|
|
|
|
|
|
|
|
|
|
|
|
|
100.00 % |
|
98.01 % |
|
|
|
|
| |
Empirical Formula:
|
Pb0.8Y0.2U0.1Ca0.1Nb1.4Si0.2Fe2+0.2Ta0.1O6.2 (OH)0.5 |
|
Environment:
|
Metasomatically altered granitic rocks |
|
Locality:
|
Undisclosed locality in the Northern Ural Mountains, Russia.. Link to
MinDat.org
Location Data.
|
|
Name Origin:
|
For lead, PLUMBum, in its composition and its relationship to pyrochlore |
|
Synonym:
|