Silicate　phases　coexisting　with　ore　minerals　are　often　overlooked　when　constraining　ore-forming　processes,　even　when　they　host　significant　concentrations　of　commodity　metals　and　may　subsequently　release　these　metals　to　form　discrete　mineral　phases.　Relationships　between　garnet　growth　and　tungsten　mineralisation　are　studied　using　W-rich　garnets　(up　to　3542　ppm)　from　the　oxidised　Fujiashan　W(-Cu-Mo)　skarn,　China.　Compositional　heterogeneity　in　garnet,　expressed　as　core-to-rim　texture,　relates　to　successive　two-stage　fluid　infiltration.　Tungsten　shows　strong　positive　correlations　with　As,　Mo　and　In,　with　all　four　elements　appearing　to　be　structurally　bound.　Scheelite　is　expected　to　form　during　the　replacement　of　W-rich　garnet　by　retrograde　minerals.　Scavenging　large　quantities　of　W　by　andradite　garnet　and　the　lack　of　intense　retrograde　alteration　may　be　critical　factors　contributing　to　low　W　grades　observed　in　oxidised　skarns.　Our　findings　underscore　the　importance　of　gangue　mineral　growth　and　breakdown　in　influencing　the　distribution　of　certain　ore　metals.