Limestone

Type	Natural resource
State	Loose
Transported by	U-shape Conveyor [II•III] Pickup•Truck Haul Truck (Dump)
Stored in	Loose Storage [II•III•IV] Shipyard
Created in	Designations Designations Limestone Quarry
Used in	Arc Furnace II Blast Furnace II Chemical Plant Chemical Plant II Designations Food Processor Mixer Mixer II Rotary Kiln Rotary Kiln (Gas) Rotary Kiln Mixer Blast Furnace II Arc Furnace II

Limestone is a non-renewable natural resource found only on the island. It is obtained solely via mining in a Designations. It is a required ingredient for the production on Cement, Glass Mix, and late-game Molten Copper. It can also be used as an input in the conversion of excess Sulfur into Slag, though care should be given to monitor resource levels to avoid exhausting Limestone mines.

Island reserves

Main article: Home Island

Each Home Island contains varying amounts of natural resources. The amount of resources mined by Excavators is modified by the resources size modifier on the Map Selection screen while the amount which can be extracted per tile is further affected by the ore mining yield modifier on the Game Difficulty screen. On the other hand, the amount of Crude Oil and Water is modified by Extra Starting Material modifier on the Game Difficulty screen. Any modifier cannot be changed once the island has been founded.

Resource reserves in Home Island (version 0.4.11)
Map	Iron Ore	Copper Ore	Gold Ore	Coal	Limestone	Crude Oil	Rock	Sand	Dirt	Groundwater	Wood
New Haven	1,400,000	1,400,000	620,000	1,700,000	1,200,000	80,000	12,200,000	1,000,000	4,000,000	57,000	80,000
The Beach	4,500,000	2,500,000	1,000,000	2,100,000	1,200,000	92,000	25,100,000	1,500,000	5,700,000	66,000	110,000
Curland	5,700,000	4,900,000	1,200,000	2,500,000	4,200,000	1,100,000	39,600,000	4,800,000	6,600,000	51,000	110,000
The Crater (Supporter edition)	3,700,000	2,300,000	670,000	5,800,000	1,800,000	70,000	56,800,000	700,000	6,500,000	48,000	87,000
The Golden Peak	2,200,000	2,100,000	7,300,000	1,900,000	1,400,000	110,000	26,000,000	680,000	4,100,000	63,000	93,000
File:Insula Mortis.png Insula Mortis	8,700,000	2,900,000	2,800,000	3,900,000	1,400,000	220,000	46,700,000	760,000	6,300,000	60,000	120,000
You Shall Not Pass	8,300,000	10,600,000	3,300,000	4,100,000	7,800,000	100,000	71,100,000	8,300,000	6,300,000	99,000	100,000

It should be noted that most of the above natural resources are non-renewable. But there are alternative ways to get unlimited resources.

Dirt can be created by dumping Compost onto the ground or mixing Compost and Gravel.
Sand can be created from Quartz by processing it in a Crusher twice.
- Manufactured Sand, made from Rock via Gravel, can substitute for sand in Concrete Slab and Filter Media production
Wood is infinite, since Trees can be planted with Tree Planters.
All other resources can be imported infinitely from Outposts or by Contracts, and some of them can be indefinitely created/collected in more ways:
- Water can be indefinitely collected by 3 different ways:
  - Rain replenishes the Natural Groundwater Resource lode (which can be pumped with a Groundwater Pump).
  - Rain can also be collected directly with the use of a Rainwater Harvester.
  - Seawater can be pumped limitlessly from the sea with a Seawater Pump(Tall) (This method requires the post processing of the Seawater into the Water.)
- Coal can be created from Wood with a Coal Maker.
Crude Oil consumption can potentially be avoided in the late game using the Biodiesel technology for Diesel and Naphtha Reforming for Naphtha.