Garnet geochemistry of tungsten-mineralized Xihuashan granites in

article The Xihuashan complex intrusion in South China, which is emplaced at ca. 154 Ma, mainly comprises medium-grainedporphyritic biotite granite,medium-grained biotite granite,and fine-grained two-mica granite. Medium-grained biotite and fine-grained two-mica granites are important tungsten-bearing granites and con- tain an unusual amount of garnet. Garnets from this intrusion are dominated by almandine and spessartine, whichconstitute94%to99%ofthetotalmolecularcompositionofthegarnet.Thesegarnetsdisplayunusualcom- positionalzoning.Thecoresofthesegarnetsarerichinheavyrareearthelement(HREE),Y,Ca,andcontainabun-