Crushed Basalt
From Eco - English Wiki
Crushed Basalt is created by crushing Basalt. This can be done in two different machines, each of these machines has the same ratio for Basalt to Crushed Basalt, but differ in time and labor cost. They are ranked as follows:
Level 1: None as of Version 9.0.3
Level 2: Stamp Mill
Level 3: Jaw Crusher
Crushed Basalt is not used for anything other the decorations as of Version 9.0.3.
