Basalt

Basalt is a dark-coloured fine-grained extrusive igneous rock formed by the rapid cooling of silica-poor magma. Basalt also has a variation named Columnar Basalt, which consists in the formation of basaltic columns (usually hexagonal) under specific geological conditions.

If a Basalt or Columnar Basalt block is broken with the Geologist Hammer, it has the following possible drops:

Common (>20%)


 * Basalt

Uncommon (10% > x > 20%)


 * Olivine
 * Feldspar
 * Magnetite