Iron Ore Boulder鉄の鉱石の岩

What is Iron Ore Boulder? Features and uses

Iron Ore Boulder is a common item in Core Keeper (Placeables & furniture).

Iron Ore Boulder key points (from the game data)

• Size when placed: 2×2 tiles.
• Sells to merchants for 1 Ancient Coin.

Calculated and summarized by this site from the game data (1.3.0.6).

Iron Ore Boulder mechanics (checked against the game data)

• The Iron Ore Boulder can only be mined with a drill.
• There are ten metal ore boulders, one per ore from copper to relucite.

Written by this site from values in the game files (1.3.0.6 prefabs and configuration files).

Iron Ore Boulder notes

• Mining it requires a Crude Drill or Drill on one side of the boulder, connected to power.
• Several drills can be placed around a boulder, and each one speeds up ore output.
• Up to eight drills fit around one boulder, two per side.
• Output depends on drill type and count, layout, and whether hits overlap on the same boulder tile.
• More drills raise total output, but the increase gets a little smaller each time.
• Once the drills have power, the boulder shakes and clinks with every hit.
• A mined-out boulder breaks and disappears.
• On the map, an ore boulder shows up as a solid 2×2 square.
• Point a Crude Drill or Drill at the boulder and connect it to a generator, adding Electrical Wire wherever needed.
• Before building collection, confirm that the drill is powered and ore appears behind it.
• Check that both drilling and collection work before adding more drills.
• A jammed collection route is not fixed by adding drills.
• Eight is the number of positions around the boulder, not the number of drills needed to start.
• More drills increase output from that boulder, though each adds a bit less.
• Use the drilling rate tables to decide how to spread your equipment.
• The Furnace, Smelter Kiln and Fury Forge all smelt ore into bars, but each takes different ores, so match the smelter to the ore.
• Furnace: Copper Ore, Iron Ore and Tin Ore.
• Smelter Kiln: Gold Ore, Scarlet Ore and Octarine Ore.
• Fury Forge: Galaxite Ore, Solarite Ore, Pandorium Ore and Relucite Ore.
• The Robot Arm has to face the correct way to load ore into a smelter.
• A smelter runs automatically once it holds ore it accepts.
• No ore: check that there is power and the drill faces the boulder.
• Do not judge a new setup after a few seconds; compare it with the drilling rate tables.
• Ore building up behind the drill: check the belt direction, the Robot Arm's direction and power, and free space at the destination.
• Ore reaches the smelter but is not processed: check that the smelter supports that ore.
• The three smelters each process a different set of ores.
• Extra drills did not speed things up much: each added drill helps less.
• Layout and overlapping hits also affect mining speed.
• The boulder vanished: it has been mined out.
• Move the mining setup to another boulder.

These notes cover behavior that the game files do not show directly. They are based on facts from the Core Keeper Wiki (Fandom) page "Iron Ore Boulder" (CC BY-SA 3.0), rewritten in this site's own words.

How to get Iron Ore Boulder

• Placed naturally when the world is generated (The Desert of Beginnings, Azeos' Wilderness, The Forgotten Ruins)From the game's world generation settings (Conf/Spawn/Initial).