diff --git a/platforms/fabric/src/main/java/com/dfsek/terra/fabric/mixin/fix/NetherFossilOptimization.java b/platforms/fabric/src/main/java/com/dfsek/terra/fabric/mixin/fix/NetherFossilOptimization.java
new file mode 100644
index 000000000..770b042dd
--- /dev/null
+++ b/platforms/fabric/src/main/java/com/dfsek/terra/fabric/mixin/fix/NetherFossilOptimization.java
@@ -0,0 +1,42 @@
+package com.dfsek.terra.fabric.mixin.fix;
+
+import com.dfsek.terra.fabric.generation.FabricChunkGeneratorWrapper;
+
+import net.minecraft.block.BlockState;
+import net.minecraft.block.Blocks;
+import net.minecraft.structure.NetherFossilGenerator;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Direction;
+import net.minecraft.util.math.random.ChunkRandom;
+import net.minecraft.world.EmptyBlockView;
+import net.minecraft.world.gen.HeightContext;
+import net.minecraft.world.gen.chunk.VerticalBlockSample;
+import net.minecraft.world.gen.heightprovider.HeightProvider;
+import net.minecraft.world.gen.structure.NetherFossilStructure;
+import net.minecraft.world.gen.structure.Structure;
+import net.minecraft.world.gen.structure.Structure.Context;
+import net.minecraft.world.gen.structure.Structure.StructurePosition;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+import java.util.Optional;
+
+
+/**
+ * Disable fossil generation in Terra worlds, as they are very expensive due to consistently triggering cache misses.
+ *
+ * Currently, on Fabric, Terra cannot be specified as a Nether generator. TODO: logic to turn fossils back on if chunk generator is in nether.
+ */
+@Mixin(NetherFossilStructure.class)
+public class NetherFossilOptimization {
+    @Inject(method = "getStructurePosition", at = @At("HEAD"), cancellable = true)
+    public void injectFossilPositions(Context context, CallbackInfoReturnable<Optional<StructurePosition>> cir) {
+        if(context.chunkGenerator() instanceof FabricChunkGeneratorWrapper) {
+            cir.setReturnValue(Optional.empty());
+        }
+    }
+}
diff --git a/platforms/fabric/src/main/resources/terra.mixins.json b/platforms/fabric/src/main/resources/terra.mixins.json
index 85baf5377..ad1d97bb9 100644
--- a/platforms/fabric/src/main/resources/terra.mixins.json
+++ b/platforms/fabric/src/main/resources/terra.mixins.json
@@ -1,52 +1,53 @@
 {
-    "required": true,
-    "minVersion": "0.8",
-    "package": "com.dfsek.terra.fabric.mixin",
-    "compatibilityLevel": "JAVA_17",
-    "mixins": [
-        "access.MobSpawnerLogicAccessor",
-        "access.StateAccessor",
-        "access.StructureAccessorAccessor",
-        "cache.ChunkRegionMixin",
-        "cache.ProtoChunkMixin",
-        "compat.GenerationSettingsFloraFeaturesMixin",
-        "implementations.BiomeMixin",
-        "implementations.HandleImplementationMixin",
-        "implementations.block.BlockMixin",
-        "implementations.block.entity.BlockEntityMixin",
-        "implementations.block.entity.LootableContainerBlockEntityMixin",
-        "implementations.block.entity.MobSpawnerBlockEntityMixin",
-        "implementations.block.entity.SignBlockEntityMixin",
-        "implementations.block.state.BlockStateMixin",
-        "implementations.block.state.PropertyMixin",
-        "implementations.chunk.ChunkRegionMixin",
-        "implementations.chunk.WorldChunkMixin",
-        "implementations.chunk.data.ProtoChunkMixin",
-        "implementations.entity.EntityMixin",
-        "implementations.entity.EntityTypeMixin",
-        "implementations.entity.PlayerEntityMixin",
-        "implementations.entity.ServerCommandSourceMixin",
-        "implementations.inventory.LockableContainerBlockEntityMixin",
-        "implementations.inventory.item.ItemMixin",
-        "implementations.inventory.item.ItemStackMixin",
-        "implementations.inventory.meta.EnchantmentMixin",
-        "implementations.inventory.meta.ItemStackDamageableMixin",
-        "implementations.inventory.meta.ItemStackMetaMixin",
-        "implementations.world.ChunkRegionMixin",
-        "implementations.world.ServerWorldMixin",
-        "lifecycle.DataPackContentsMixin",
-        "lifecycle.MinecraftServerMixin",
-        "lifecycle.NoiseConfigMixin",
-        "lifecycle.RegistryMixin"
-    ],
-    "client": [
-        "lifecycle.client.MinecraftClientMixin"
-    ],
-    "server": [
-        "lifecycle.server.ServerMainMixin"
-    ],
-    "injectors": {
-        "defaultRequire": 1
-    },
-    "refmap": "terra-refmap.json"
+  "required": true,
+  "minVersion": "0.8",
+  "package": "com.dfsek.terra.fabric.mixin",
+  "compatibilityLevel": "JAVA_17",
+  "mixins": [
+    "access.MobSpawnerLogicAccessor",
+    "access.StateAccessor",
+    "access.StructureAccessorAccessor",
+    "cache.ChunkRegionMixin",
+    "cache.ProtoChunkMixin",
+    "compat.GenerationSettingsFloraFeaturesMixin",
+    "fix.NetherFossilOptimization",
+    "implementations.BiomeMixin",
+    "implementations.HandleImplementationMixin",
+    "implementations.block.BlockMixin",
+    "implementations.block.entity.BlockEntityMixin",
+    "implementations.block.entity.LootableContainerBlockEntityMixin",
+    "implementations.block.entity.MobSpawnerBlockEntityMixin",
+    "implementations.block.entity.SignBlockEntityMixin",
+    "implementations.block.state.BlockStateMixin",
+    "implementations.block.state.PropertyMixin",
+    "implementations.chunk.ChunkRegionMixin",
+    "implementations.chunk.WorldChunkMixin",
+    "implementations.chunk.data.ProtoChunkMixin",
+    "implementations.entity.EntityMixin",
+    "implementations.entity.EntityTypeMixin",
+    "implementations.entity.PlayerEntityMixin",
+    "implementations.entity.ServerCommandSourceMixin",
+    "implementations.inventory.LockableContainerBlockEntityMixin",
+    "implementations.inventory.item.ItemMixin",
+    "implementations.inventory.item.ItemStackMixin",
+    "implementations.inventory.meta.EnchantmentMixin",
+    "implementations.inventory.meta.ItemStackDamageableMixin",
+    "implementations.inventory.meta.ItemStackMetaMixin",
+    "implementations.world.ChunkRegionMixin",
+    "implementations.world.ServerWorldMixin",
+    "lifecycle.DataPackContentsMixin",
+    "lifecycle.MinecraftServerMixin",
+    "lifecycle.NoiseConfigMixin",
+    "lifecycle.RegistryMixin"
+  ],
+  "client": [
+    "lifecycle.client.MinecraftClientMixin"
+  ],
+  "server": [
+    "lifecycle.server.ServerMainMixin"
+  ],
+  "injectors": {
+    "defaultRequire": 1
+  },
+  "refmap": "terra-refmap.json"
 }
\ No newline at end of file