Limestone

Limestone is a basic resource 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.

Items produced per minute

100% Clock Speed250% Clock Speed

	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	1200

Number of Limestone resource nodes is as follows:

Node purity	Number of nodes	Mk.3 mining rate	Mk.3 mining rate at 250 %
Impure	15	1,800	4,500
Normal	50	12,000	30,000
Pure	29	13,920	34,800
Total	94	27,720	69,300

Crafting

Recipe	Ingredients	Produced in	Products	Unlocked by
Limestone (Sulfur)	1 × Reanimated SAM10 / min 2 × Sulfur20 / min	Converter 6 sec 100 - 400 MW	12 × Limestone120 / min	Tier 9 - Matter Conversion

Usage

Crafting

Recipe	Ingredients	Produced in	Products	Unlocked by
Coal (Limestone)	1 × Reanimated SAM10 / min 36 × Limestone360 / min	Converter 6 sec 100 - 400 MW	12 × Coal120 / min	Tier 9 - Matter Conversion
Concrete	3 × Limestone45 / min	Constructor 4 sec Craft Bench  × 2	1 × Concrete15 / min	Tier 0 - HUB Upgrade 3
Iron Ore (Limestone)	1 × Reanimated SAM10 / min 24 × Limestone240 / min	Converter 6 sec 100 - 400 MW	12 × Iron Ore120 / min	Tier 9 - Matter Conversion
Basic Iron Ingot Alternate	5 × Iron Ore25 / min 8 × Limestone40 / min	Foundry 12 sec	10 × Iron Ingot50 / min	Tier 3 - Basic Steel Production
Cheap Silica Alternate	3 × Raw Quartz22.5 / min 5 × Limestone37.5 / min	Assembler 8 sec	7 × Silica52.5 / min	MAM Quartz Research - Silica
Cloudy Diamonds Alternate	12 × Coal240 / min 24 × Limestone480 / min	Particle Accelerator 3 sec 250 - 750 MW	1 × Diamonds20 / min	Tier 9 - Matter Conversion
Distilled Silica Alternate	12 × Dissolved Silica120 / min 5 × Limestone50 / min 10 × Water100 / min	Blender 6 sec	27 × Silica270 / min 8 × Water80 / min	Tier 7 - Control System Development
Fine Concrete Alternate	3 × Silica15 / min 12 × Limestone60 / min	Assembler 12 sec	10 × Concrete50 / min	MAM Quartz Research - Quartz
Rubber Concrete Alternate	10 × Limestone100 / min 2 × Rubber20 / min	Assembler 6 sec	9 × Concrete90 / 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