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Table 6 Composition of thorite

From: Bristen granite: a highly differentiated, fluorite-bearing A-type granite from the Aar massif, Central Alps, Switzerland

Mineral Thorite Thorite
Point 29 30
SiO2 18.61 19.36
ThO2 52.72 52.30
UO2 23.00 24.68
Y2O3 1.47 1.65
FeO 0.37 0.43
Total 96.33 98.57
Si 1.018 1.028
Th 0.656 0.632
U 0.280 0.292
Y 0.043 0.047
Fe 0.017 0.019
Sum M 0.996 0.989
  1. aOxides in wt%, stoichiometry per 4 oxygens