Chemical Formula:
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(Th,Pb,Ca)PO4·(H2O) |
Composition:
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Molecular Weight = 318.38 g |
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Hydrogen |
0.63 % |
H |
5.66 % |
H2O |
0.00 % |
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Oxygen |
25.13 % |
O |
0.00 % |
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0.00 % |
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Phosphorus |
9.73 % |
P |
22.29 % |
P2O5 |
0.00 % |
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Calcium |
1.26 % |
Ca |
1.76 % |
CaO |
0.00 % |
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Lead |
19.52 % |
Pb |
21.03 % |
PbO |
0.00 % |
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Thorium |
43.73 % |
Th |
49.76 % |
ThO2 |
0.00 % |
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|
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100.00 % |
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100.50 % |
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Empirical Formula:
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Th0.6Pb0.3Ca0.1(PO4)·(H2O) |
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Environment:
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Lithium pegmatites |
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Locality:
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Gooddays mine, Mtoko, and the Mahaka claim, Wedza, Zimbabwe.. Link to
MinDat.org
Location Data.
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Name Origin:
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Named for Anton Gray, mining engineer, advisor to U. K. Atomic Energy Authority |
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Synonym:
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