diff --git a/src/main/java/carpetextra/CarpetExtraSettings.java b/src/main/java/carpetextra/CarpetExtraSettings.java
index 76475d54..25976b0c 100644
--- a/src/main/java/carpetextra/CarpetExtraSettings.java
+++ b/src/main/java/carpetextra/CarpetExtraSettings.java
@@ -167,13 +167,6 @@ public Integer validate(ServerCommandSource source, ParsedRule<Integer> currentR
     @Rule(desc = "Disables player entity collision.", category = {EXTRA, CREATIVE, EXPERIMENTAL})
     public static boolean disablePlayerCollision = false;
     
-    @Rule(
-            desc = "Obsidian surrounded by 6 lava sources has a chance of converting to lava.",
-            category = {EXTRA, EXPERIMENTAL, FEATURE},
-            extra = "Credits: Skyrising"
-    )
-    public static boolean renewableLava = false;
-    
     @Rule(
             desc = "Re-adds 1.8 double retraction to pistons.",
             category = {EXTRA, EXPERIMENTAL},
diff --git a/src/main/java/carpetextra/helpers/ObsidianBlock.java b/src/main/java/carpetextra/helpers/ObsidianBlock.java
deleted file mode 100644
index 68c9260c..00000000
--- a/src/main/java/carpetextra/helpers/ObsidianBlock.java
+++ /dev/null
@@ -1,43 +0,0 @@
-package carpetextra.helpers;
-
-import carpetextra.CarpetExtraSettings;
-import net.minecraft.block.Block;
-import net.minecraft.block.BlockState;
-import net.minecraft.block.Blocks;
-import net.minecraft.fluid.FluidState;
-import net.minecraft.fluid.Fluids;
-import net.minecraft.server.world.ServerWorld;
-import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.Direction;
-
-import java.util.Random;
-
-// Credits: Skyrising
-public class ObsidianBlock extends Block
-{
-    public ObsidianBlock(Settings settings)
-    {
-        super(settings);
-    }
-    
-    @Override
-    public boolean hasRandomTicks(BlockState state)
-    {
-        return CarpetExtraSettings.renewableLava;
-    }
-
-    @Override
-    public void randomTick(BlockState blockState_1, ServerWorld serverWorld_1, BlockPos blockPos_1, Random random_1)
-    {
-        for (Direction dir : Direction.values())
-        {
-            FluidState neighbor = serverWorld_1.getFluidState(blockPos_1.offset(dir));
-            if (neighbor.getFluid() != Fluids.LAVA || !neighbor.isStill())
-                return;
-        }
-        if (random_1.nextInt(10) == 0)
-        {
-            serverWorld_1.setBlockState(blockPos_1, Blocks.LAVA.getDefaultState());
-        }
-    }
-}
diff --git a/src/main/java/carpetextra/mixins/BlocksMixin.java b/src/main/java/carpetextra/mixins/BlocksMixin.java
deleted file mode 100644
index 62bee09b..00000000
--- a/src/main/java/carpetextra/mixins/BlocksMixin.java
+++ /dev/null
@@ -1,32 +0,0 @@
-package carpetextra.mixins;
-
-import carpetextra.helpers.ObsidianBlock;
-import net.minecraft.block.Block;
-import net.minecraft.block.Blocks;
-import net.minecraft.block.MapColor;
-import net.minecraft.block.Material;
-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.Redirect;
-import org.spongepowered.asm.mixin.injection.Slice;
-
-// Credits: Skyrising
-@Mixin(Blocks.class)
-public class BlocksMixin
-{
-    @Shadow
-    private static Block register(String string_1, Block block_1) {
-        throw new AssertionError();
-    }
-    
-    @Redirect(method = "<clinit>",
-        slice = @Slice(from = @At(value = "CONSTANT", args = "stringValue=obsidian")),
-        at = @At(value = "INVOKE",
-            target = "Lnet/minecraft/block/Blocks;register(Ljava/lang/String;Lnet/minecraft/block/Block;)Lnet/minecraft/block/Block;",
-            ordinal = 0))
-    private static Block registerObsidian(String id, Block obsidian)
-    {
-        return register(id, new ObsidianBlock(Block.Settings.copy(obsidian).ticksRandomly()));
-    }
-}
diff --git a/src/main/resources/carpet-extra.mixins.json b/src/main/resources/carpet-extra.mixins.json
index 50602e4d..8808428b 100644
--- a/src/main/resources/carpet-extra.mixins.json
+++ b/src/main/resources/carpet-extra.mixins.json
@@ -52,7 +52,6 @@
     "HopperBlock_syncMixin",
     "SaplingBlock_syncMixin",
     "SugarCaneBlock_syncMixin",
-    "BlocksMixin",
     "ChunkGeneratorMixin",
     "FallingBlockMixin",
     "ChickenEntityMixin",