Blocks / Polished Obsidian Bricks Slab Polished Obsidian Bricks Slab phantasm:polished_obsidian_bricks_slab phantasm Waterloggable Physics Properties Explosion Resistance 7.0 Hardness 7.0 Friction 0.60 Speed Factor 1.00x Jump Factor 1.00x Block Behavior Has Collision Yes Is Air No Can Occlude Yes Requires Correct Tool Yes Waterloggable Yes