Limestone

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Common mineral, often gathered accidentally. Key ingredient in Biobrick and other intermediates

Limestone is one of four resources that can be mined using mining drills and forms a core part of fuel and construction material production cycles in the early game.

Obtaining

Limestone is the most common product (with Plantmatter and Dirt also available) from harvesting terrain using the Mole. Its abundance from this route will typically be sufficient for many early crafting recipes, though automation via mining drills its preferred later.

Unlocking

Access to Limestone is not explicitly locked behind research in the technology tree - it can be obtained from the environment using a Standard Pickaxe or from a mining drill placed next to a Limestone ore patch. Its collection with the Mole requires unlocking the M.O.L.E technology (terraforming - PT LIMA - T4 - The M.O.L.E) and its direct crafting is available from a number of technologies in the tree.

Crafting

Crafting recipes

Recipe	Ingredients	Produced In	Products
Limestone (Limestone Extraction)	2 x Kindlevine Extract (80/min)	Smelter	1 x Limestone (40/min)

Usage

Limestone is a core ingredient in the production of Biobrick, a preferred fuel source for early automation.

Recipes

• Inventory
• Assembler MK1
• Assembler MK2

Crafting recipes

Recipe	Ingredients	Produced In	Products
Biobrick (Biobrick)	30 x Plantmatter (15/min)	Inventory	5 x Biobrick (5/min)
	60 x Limestone (30/min)

Crafting recipes

Recipe	Ingredients	Produced In	Products
Biobrick (Biobrick)	30 x Plantmatter (15/min)	Assembler	10 x Biobrick (10/min)
	60 x Limestone (30/min)

Crafting recipes

Recipe	Ingredients	Produced In	Products
Biobrick (Biobrick)	30 x Plantmatter (15/min)	Assembler	20 x Biobrick (20/min)
	60 x Limestone (30/min)