Cracked Sand is part of ExtrabiomesXL. It is found in wastelands as main ground structure material.
There is 9.2% chance that Cracked Sand will be made as a counter product of Sludge being cooked in Sludge Boiler.
Cracked Sand can be turned into regular sand by adding a bucket of water. When placing 16 cracked sand, along with an empty fuel can, into an industrial centrifuge, output is 1 full fuel can, 10 sand, and 8 saltpeter dust. It can also be used as BC facade.