Modern Industrialization — Steel Quarry = Passive Diamonds
A multiblock that AFK-produces diamonds and emeralds every 30 seconds.
The proof
File: data/modern_industrialization/recipes/quarry/steel.json (inside Modern-Industrialization-1.8.6.jar)
{
"type": "modern_industrialization:quarry",
"eu": 12,
"duration": 600,
"item_inputs": {
"item": "modern_industrialization:steel_drill",
"probability": 0.04
},
"item_outputs": [
{ "item": "minecraft:diamond_ore", "probability": 0.12 },
{ "item": "minecraft:emerald_ore", "probability": 0.10 },
{ "item": "minecraft:lapis_ore", "probability": 0.10 },
{ "item": "modern_industrialization:bauxite_ore", "probability": 0.40 },
{ "item": "modern_industrialization:antimony_ore", "probability": 0.20 },
{ "item": "modern_industrialization:lead_ore", "probability": 0.25 },
{ "item": "modern_industrialization:nickel_ore", "probability": 0.18 },
{ "item": "modern_industrialization:quartz_ore", "probability": 0.20 },
{ "item": "modern_industrialization:salt_ore", "probability": 0.12 }
]
}
Yield per cycle (30 seconds at 12 EU/t)
Every 30 seconds:
- 12% chance at diamond ore
- 10% chance at emerald ore
- 10% lapis
- 40% bauxite (= aluminum)
- 20% quartz, 25% lead, 18% nickel, 20% antimony, 12% salt
Drill consumption: 4% per cycle = 1 drill lasts ~25 cycles ≈ 12 minutes.
The math
Over an in-game day (24000 ticks ≈ 20 real minutes), one steel quarry produces:
- ~40 cycles
- ~4.8 diamond ore on average
- ~4.0 emerald ore on average
- Plus ~16 bauxite (aluminum), ~10 lead, ~8 quartz
- Uses ~1.6 steel drills
That's passive diamonds and emeralds while you AFK. The emerald output alone funds infinite villager trades.
All quarry tiers ranked
From the same file directory:
| Drill | EU/t | Notable outputs | Verdict |
|---|---|---|---|
| Bronze | 4 | iron, coal, gold, redstone, copper | 🥉 starter; broad yield |
| Copper | 4 | filler tier (10% drill consume) | skip |
| Gold | 8 | filler | skip |
| Steel | 12 | diamond 12%, emerald 10%, lapis | 🥇 best overall |
| Stainless Steel | 32 | titanium, tungsten, monazite, platinum | 🥈 next step |
| Titanium | 128 | uranium 20%, iridium 5% | endgame nuclear |
Setup priority
- Coke Oven (basic steel)
- Steam Boiler (free EU from coal)
- Steel Steam Quarry (multiblock)
- Bronze Drill mass-production
- Upgrade to Steel Drill
- AFK with chunk loader (Kibe, unlimited)
- Pipe output into AE2
You're now permanently funded for diamonds, emeralds, and aluminum.