Coal Ore

Harvest drops

• Coal× 50
• Small Stone× 14
• Coal× 50
• Brass× 100-200 @ 5%
• Raw Diamond× 1 @ 0.5%
• Silver Nugget× 1 @ 1%
• Gold Nugget× 1 @ 0.7%

Taken apart with a harvesting tool (axe, pickaxe, shovel), before perks and tool bonuses.

When it collapses

• Coal× 50 @ 40%

Where to find (9 POIs)

Aranea Caverns (tier 4), Super Shamway (tier 4), The Fates Motel (tier 4), The Brown Residence (tier 2), Bear-N-Land Coal Mining (tier 1), Metal Works (tier 1), Industrial Tank #2, Leaking Industrial Tank, Rotten Cavern.

Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.