Crude Ore
Crude Ore is the raw stock unit of your mining cell — one variant per tier, from Coal up through Iron, Lapis, Redstone, Gold, Diamond, Emerald, and Netherite.
Place a Crude Ore block in a cell and your generators fill it with ore over time, up to twice the tier's base rate per hour. The stock it holds is what sets your cell's value, so a fuller, higher-tier block is worth more. Combine 8 of one tier with a Crude Ore Core to craft a single Condensed Crude Ore of that same tier.
Where to get it: it's produced by the mining-cell economy itself — generators in your cell build it up as part of cell income.