Minecraft wiki entry for Anvil, associated text: When there is no supporting block below an anvil, the anvil falls in the same way sand, gravel, concrete powder, and dragon eggs fall. A placed anvil cannot be pushed or pulled by pistons,‌[Java Edition only] but a falling anvil can be pushed (though cannot be pulled), as it is an entity. This is different in Bedrock Edition where anvils can be pushed and pulled by pistons. Anvils make a metallic clang sound when they land.