Rock

Rock is hard. You want hard? You want rock. How hard is rock? Rock beats scissors. Rock beats almost anything. Don't mention paper around rock. Rock is hard, but rock can also be sensitive.

Rock is very common making it easy to identify early on. Rock is used in many starting recipes (along with Dirt, Mud, & Clay). As with dirt it will also be useful through the entire game.

Gathering
Rock is a very common resource and can be found in almost all biomes. It is gathered using a Laser Pick

Appearance
It's appearance is based on the biome it is located in. It does not retain it's appearance when gathered from one biome and placed in another.