Limestone

Limestone
Used for crafting. Basic resource mainly used for stable foundations.
Class name	Desc_Stone_C
Item
Stack size	100
Sink points	2
Abbrev­iation	Stone

Limestone is a basic type of ore which is abundant in the world. It is primarily used to produce Concrete, an essential material in factory construction.

Obtaining

Resource acquisition

Limestone can be harvested by hand (default E) in trace amounts from resource deposits scattered across the world, or from inexhaustible resource nodes on which Miners can be constructed to extract automatically. Additonally, Lizard Doggos will ocassionally bring it when tamed.

Items produced per minute

	Miner Mk.1	Miner Mk.2	Miner Mk.3
Impure	30	60	120
Normal	60	120	240
Pure	120	240	480

	Miner Mk.1	Miner Mk.2	Miner Mk.3
Impure	75	150	300
Normal	150	300	600
Pure	300	600	780

Number of Limestone resource nodes is as follows:

Node purity	Number of nodes	Mk.3 mining rate	Mk.3 mining rate at 250 %
Impure	12	1,440	3,600
Normal	47	11,280	28,200
Pure	27	12,960	21,060* / 32,400
Total	86	25,680	52,860* / 64,200

^*Note: The extraction rate of a Miner Mk.3 at 250 % is 1,200/min, but a Mk.5 Conveyor can only carry 780/min, therefore the maximum mined amount cannot be transported.

Extraction energy

It takes about 10.7 MJ to extract 1 Limestone. Further reading: Extraction energy

Usage

Used to craft

Recipe	Ingredients	Produced in	Products	Unlocked by
Concrete	3 × Limestone45 / min	Constructor 4 sec Craft Bench  × 2	1 × Concrete15 / min	Tier 0 - HUB Upgrade 3
Cheap Silica Alternate	3 × Raw Quartz11.25 / min 5 × Limestone18.75 / min	Assembler 16 sec	7 × Silica26.25 / min	MAM Quartz Research - Silica
Fine Concrete Alternate	3 × Silica7.5 / min 12 × Limestone30 / min	Assembler 24 sec	10 × Concrete25 / min	MAM Quartz Research - Quartz
Rubber Concrete Alternate	10 × Limestone50 / min 2 × Rubber10 / min	Assembler 12 sec	9 × Concrete45 / min	Tier 5 - Oil Processing
Wet Concrete Alternate	6 × Limestone120 / min 5 × Water100 / min	Refinery 3 sec	4 × Concrete80 / min	Tier 3 - Coal Power

AWESOME Sink

 Limestone can be sunk into the AWESOME Sink to yield 2 points.

Gallery

• 

  Hand-mining Limestone

• 

  A limestone node in the Grass Fields

History

• Patch 0.3.4.7: New mesh and icon introduced
• Patch 0.2.1.19: New mesh and icon introduced
• Patch Closed Alpha 4: Renamed Stone to Limestone