Ore Tiers
Common, Uncommon, Rare and Exotic. Higher tiers are harder to mine and better at almost everything.
Tier sets an ore's starting properties and how hard it is to dig. Each ore then varies a little from its tier's numbers. Combustion is the exception: it isn't tied to tier, so a common surface ore can burn ferociously while a deep exotic one barely smoulders.
| Tier | Mine time | Power needed | Hardness | Density | Energy | Reactivity |
|---|---|---|---|---|---|---|
| Common | 1.0 s | 1.0 | 40 | 40 | 30 | 15 |
| Uncommon | 1.4 s | 1.0 | 55 | 50 | 50 | 30 |
| Rare | 2.0 s | 1.6 | 72 | 62 | 68 | 55 |
| Exotic | 2.8 s | 2.4 | 88 | 82 | 85 | 85 |