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Sandustry Lava Guide

Sandustry Lava guide: find Lava deep underground, do not pump it, freeze it into Scoria, break it into Cinder, then reignite it at your factory.

QUICK ANSWER

Lava is found deep underground in the Lava Cave and cannot be moved with a Pump. Freeze it into Scoria, break Scoria into Cinder, transport the Cinder, then ignite it with a Flamethrower to recreate Lava.

Where Lava is found

The official Lava page places natural Lava deep underground in the Lava Cave. It is a liquid resource and is useful for automated burners and Steam generation.

The confirmed transport chain

Because Lava cannot be pumped, freeze it into Scoria, break the Scoria into Cinder, move the Cinder, and heat or ignite it again at the factory. This solid transport chain is the core answer to the search query.

Heat and factory use

Lava can support automated burning and can turn Water into Steam. Pump behavior, Thermal Buffer consumption and exact factory layouts should not be invented beyond the collected official and developer-supported facts.

RELIABLE SOURCES
Sandustry Official Wiki — LavaPrimary source for location, non-pumpable rule and transport chain.
Sandustry Official Wiki — Cinder / PumpSupports the solid conversion and movement steps.