In The Planet Crafter, you are tasked with transforming a hostile planet and terraforming it into one liveable for humanity. You will need to find various resources and craft different structures to do so. One resource you will need is aluminum. This may leave you wondering where to find aluminum in The Planet Crafter.
You can find aluminum in various places in The Planet Crafter. The most common is in caves, including those hidden behind sand waterfalls. You can also find iridium in blue containers and after meteor showers, though these two seem rarer than caves. You can also find aluminum in the Aluminum Fields area.
Aluminum can be found on the ground in caves and has a glimmering gold appearance. As aluminum can be hard to find early on, we recommend picking up each ore of this resource you can find. You will need aluminum for many mid and late-game craft recipes.
When you find a cave, clear it out of any aluminum inside. If you cannot carry it all back with you, we recommend remembering the cave's location so that you can return at a later time to get the rest.
For more information on The Planet Crafter, check out How to get new blueprints in The Planet Crafter and All Achievements in The Planet Crafter on Pro Game Guides.