Stone Block

From the Super Mario Wiki

Stone Blocks are gray stone blocks that appear during the events if Paper Mario. In various locations, Stone Blocks appear, blocking Mario's way. They most abundantly appear in Dry Dry Ruins, as these blocks can't be pushed, smashed by the regular Hammer, or be destroyed by other means, such as Bombette. The only to break them is after Mario obtains a Super Hammer from Dry Dry Ruins. Stone Blocks rarely contain enemies, such as a Stone Chomp in Dry Dry Ruins.

In Paper Mario: The Thousand-Year Door, an Ultra Hammer is required to break Stone Blocks. However, the Ultra Hammer appears late in the game, and is needed to smash only a handful of Stone Blocks.

Blocks

! Block | ? Block | ♪ Block | 4-Bros. Random Block | Arrow Block | Aurora Block | Black Block | Bonus Block | Brick Block | Bros. Block | Coin Block | Command Block | Control Block | Dice Block | Dotted Line Block | Drop Block | Egg Block | Event Block | Expansion Block | Giant ? Block | Giant ! Block | Grab Block | Green Block | Heart Block | Hidden Block | Hint Block | Ice Block | L Block | Laser Block | M Block | Marshmallow Block | Metal Block | Minus Block | Mushroom Block | Perry Block | Pink Block | Plus Block | POW Block | Pushing Block | Rally Block | Random Block | Red Block | Rock Block | Save Block | Shine Block | Simu-Block | Spin Block | Star Block | Stone Block | Super Block | Triangular Block | Turning Block | Used Block | Warp Block | Wooden Block | Yellow Block | Yoshi Block