Coal Mines

The forests are becoming barren as pioneers chop trees in order to fuel their finery forges and braziers. The environmentally conscious pioneer would move to the more environmentally friendly, clean burning coal! In essence, it would take more work to obtain, as it would need to be mined just like any other ore, but it would burn longer and hotter (or in Salem terms, be worth more fuel points), just like coal vs. charcoal in real life. This is obviously not a big idea, it's just something to add a bit more realism as well as another type of mine, or potentially just a new ore that can be found in existing mines. Charcoal would still have a purpose as it can be made in bulk quantities with much less work, but coal mined this way would take less physical time to obtain as well as burning for longer and providing more fuel for braziers and finery forges. It could potentially also be ground with limestone or salt using a grindstone to make black sand for glass production.