Can be seen everywhere underground, and can be quickly collected with Pickaxes.
You can fine it everywhere under the surface. This block is the material for making Stone, Stone Pot, Tribe Totem, Stone Statue, Stone Creation Hammer, Cracked Brick, Rough Brick, Stele, Celesthium Light Beamer, NOT Gate, AND Gate, OR Gate, Celesthium Diverter, Celesthium Delayer, Transducer-Ordinary, Button-Ordinary, Celesthium Blocker, Celesthium Counter, Robot Arm, Push-pull Robot Arm, Celesthium Comparator, Flamo Spring, Rail Node and Celesthium Calculator.
Obtained by destroying Rock and crafting.