Look for pale, sandy-white rock outcrops near water around the starting orbital lander. A January 2026 guide places nearby deposits north and east of the lander, but use those directions as a starting point: an ore marker does not prove the node contains Calcium, so check the deposit in-game before setting up mining.
Where to look for Calcium Ore
Use the starting orbital lander as your landmark. Head north across the starting area or search east for the nearby deposits described in PC Gamer’s January 2026 guide. It describes large sandstone ledges, often with puddles. Another community resource guide characterizes Calcium Ore outcrops as pale white rocks with black spots, typically near water: Star Rupture Wiki’s Calcium Ore page.
These are visual clues, not a guarantee that a particular outcrop is Calcium. The map’s ore-deposit markers can point to Titanium, Wolfram, or Calcium. Use a map to narrow your search, then inspect the candidate deposit in the world to confirm its resource. The interactive map advises checking deposits in-game; its October 4, 2026 update notes changes for Update 2 and says item pages show possible deposits.
How to mine Calcium Ore
Use an Ore Excavator for ongoing production
The Ore Excavator is the sustained collection option. The community wiki lists it as a Training Corporation level 2 reward and says it can be placed on Calcium, Titanium, and Wolfram deposits. Its listed Calcium output varies by node purity:
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| Deposit purity | Ore Excavator output listed by the community wiki |
|---|---|
| Impure | 60 Calcium Ore per minute |
| Normal | 120 Calcium Ore per minute |
| Pure | 240 Calcium Ore per minute |
These are community-wiki game figures, not guaranteed rates for every current build. Check the rate shown in your game before planning production. See the Ore Excavator page for the listed building details.
Collect meteorites as an occasional alternative
The Calcium Ore page also lists mini and regular meteorites as sources, but their yields are uncertain. Treat meteorites as opportunistic extras rather than a dependable source for bulk production.
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How to process Calcium Ore
The listed main processing route is to smelt Calcium Ore into Calcium Blocks at a Smelter. Calcium Blocks can then be processed in a Furnace into Calcium Powder. The community wiki lists Calcium Powder uses including Glass, Shotgun Ammo, and Synthetic Silicon; see its Calcium Powder page.
A separate community database lists Calcium Ore as a material for Calcium Blocks and Refined Oil. Recipe information can vary between databases or game versions, so check the relevant entry in your Recipe Station before committing to a production chain. The database listing is at StarRupture Tools’ Calcium Ore page.
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Choosing a collection method
| Method | Reliability and volume | What to verify |
|---|---|---|
| Ore Excavator on a confirmed deposit | Supports sustained automated mining; listed output depends on deposit purity. | Confirm the deposit is Calcium and check the current in-game rate. |
| Meteorites | Can provide an alternative supply, but the cited item page does not establish yields. | Do not rely on them for predictable bulk output. |
| Community map marker | Useful for finding candidate deposits, but the marker may indicate another ore. | Inspect the candidate in the world to confirm its resource. |
What to keep in mind about locations and rates
The nearby north-and-east directions come from a January 2026 guide, while maps and item databases are community-maintained and may change independently of the game. No official current-build source establishes exact coordinates or universal extraction rates here. Treat the locations and wiki figures as leads, then use the in-game deposit information and displayed rate for your own build.
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