Iridium Location in The Planet Crafter (Map)

479 Iridium pins in all, on 3 of the 5 planets. Selenea and Aqualis have none. Each link opens that planet's map with only this layer switched on.

The game files give coordinates but no biome or area names for ore, so I cut each planet's map picture into nine equal parts (north-west to south-east, north at the top) and counted the pins in each. The parts are my grid, not names from the game. The last column is the middle of the pins in a planet's busiest part, in the world units the map popups show.

The picture is lopsided: Prime's busiest part (west) holds 94 of its 199 pins, and Humble's busiest part (west) holds 162 of 162.

Every Iridium pin in the files reads "Mining speed x1.0", the same as every other ore pin, so no pin is slower or faster to mine than another. Go to a pin and mine it. 22 of the 479 pins are marked as spawn points instead: 22 on Humble read "spawns here with 70 % chance". I read that as a pin which may be empty in a given save, so count on the others first.

The ore extractor is the other way in: the game's text for the T2 Ore Extractor reads "Extracts rarer ores from the ground", and the T1 reads "Extracts ores from the ground depending on where it's placed". The files do not list which ore each tier gives; the ore extractor guide has what they do state.

The map also has a separate Veins layer with 3 "Iridium vein" pins (Prime 2, Toxicity 1): Iridium vein layer. The files do not say how a vein differs from an ore pin, so I keep the two apart.

Iridium also comes packed as the Iridium Rod: 9 Iridium, crafted at Station T3. The map has 25 loose Iridium Rods lying about (Prime 14, Humble 11), so a rod can be picked up without mining the ore it is made of: open that layer.

7 recipes in the files list Iridium as an ingredient: 5 items and 2 buildings. The first ones are below; the rest are folded. Amounts are per craft as the files store them. Add any of them to the crafting calculator to see how much ore a build takes.