I made a thread about breakthrough synergies and how Extractor AI (Metals Extractors and Rare Metals Extractors can work without crews at 50 performance) combined with Magnetic Extraction (Extractor upgrade - Production increased by 50%) made unmanned extractors very profitable, but I didn't realize at the time this means you can place nine extractors over a single deposit to get production above that of a Mohole mine.
Now add Core Rare Metals for new 25,000 deposits of very high grade (I got two) and production totals 112.5 rare metals a day for a cost of 135 power (after regular techs Extractor Amplification, Fueled Extractors and Plasma Cutters) and some fuel.
I also have Nano Refinement, so even depleted deposits will continue to produce about 11.7 per day for the rest of the game.
If I had got Overcharge Amplifications I could get even more (I think about 10% net more) and sadly you can't overwork an AI, but still my ghost town of a colony is doing better than my previous ones.
Now add Core Rare Metals for new 25,000 deposits of very high grade (I got two) and production totals 112.5 rare metals a day for a cost of 135 power (after regular techs Extractor Amplification, Fueled Extractors and Plasma Cutters) and some fuel.
I also have Nano Refinement, so even depleted deposits will continue to produce about 11.7 per day for the rest of the game.
If I had got Overcharge Amplifications I could get even more (I think about 10% net more) and sadly you can't overwork an AI, but still my ghost town of a colony is doing better than my previous ones.