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Mining crystals are special consumables fitted to Tech II mining harvesters and Deep Core mining lasers to massively increase the yield of these mining modules, with certain drawbacks depending on the type of crystal used.
Crystal compatibility
Following the release of Patch 19.11, mining crystals in EVE were fundamentally changed. Prior to Patch 19.11, every ore had its own unique Tech I and II crystal. Now, standard ores are separated into 6 "tiers" with each Tier having 3 types of crystals, further divided into their Tech I and II variants.
Asteroid Ores
| Mining crystal | Compatible ores |
|---|---|
   Simple Asteroid Mining Crystals
|
 Veldspar [ MorduniumPure pyerite ore ] Scordite Pyroxeres Plagioclase
|
   Coherent Asteroid Mining Crystals
|
 Omber [ YtiriumPure isogen ore ] Kernite Jaspet Hemorphite Hedbergite |
   Variegated Asteroid Mining Crystals
|
 Gneiss Dark Ochre Crokite
|
   Complex Asteroid Mining Crystals
|
 Bistot Arkonor [ EifyriumPure zydrine ore ] Spodumain [ DuciniumPure megacyte ore ]
|
   Mercoxit Asteroid Mining Crystals
|
 Mercoxit
|
   Abyssal Asteroid Mining Crystals
|
 Bezdnacine Rakovene Talassonite
|
Moon Ores
: Ubiquitous Moon Ore Crystals
: Common Moon Ore Crystals
: Uncommon Moon Ore Crystals
: Rare Moon Ore Crystals
: Exceptional Moon Ore Crystals
Moon mining crystals only have a visual change to put them in sync with asteroid crystals, and are still compatible with the same tiers of moon ores (ubiquitous, common, uncommon, rare, exceptional) as crystals pre 19.11. See moon mining for more details on specific ores.
Crystal types
Type A
Type A crystals have moderate yield and residue bonuses, and are the most balanced crystals for standard mining operations.
| Crystal | Tech | Cycle time | Volatility | Residue probability | Residue multiplier | Yield modifier | Duration Muliplier |
|---|---|---|---|---|---|---|---|
| Simple Asteroid Mining Crystal Type A I
|
Tech I | 1x | 10% | +0% | 0 | 1.5x | 1.0x |
 Simple Asteroid Mining Crystal Type A II
|
Tech II | 1x | 12% | +3.6% | 0 | 1.8x | 1.0x |
Type B
Type B crystals have much improved yield bonuses, however, they also get a correspondingly high residue probability level to match. These crystals therefore will have a high mining yield but waste more ore in the process. The lower duration results in faster extraction.
| Crystal | Tech | Cycle time | Volatility | Residue probability | Residue multiplier | Yield modifier | Duration Muliplier |
|---|---|---|---|---|---|---|---|
| Simple Asteroid Mining Crystal Type B I
|
Tech I | 0.9x | 15% | +20% | 0 | 1.5x | 0.9x |
 Simple Asteroid Mining Crystal Type B II
|
Tech II | 0.8x | 19.6% | +30% | 0 | 1.8x | 0.8x |
Type C
Type C crystals are not for standard mining operations. They have extremely low yields with extremely high residue, making them suitable for strategic ore removal or for offensive mining operations against hostile player space.
| Crystal | Tech | Cycle time | Volatility | Residue probability | Residue multiplier | Yield modifier | Duration Muliplier |
|---|---|---|---|---|---|---|---|
| Simple Asteroid Mining Crystal Type C I
|
Tech I | 1x | 24% | +40% | 18x | 0.25x | 1.0x |
 Simple Asteroid Mining Crystal Type C II
|
Tech II | 1x | 30% | +59% | 28x | 0.2x | 1.0x |
External links
- Patchnotes for 19.11
- Github project of Mining Yield - Further math on yields, thanks to Wilm0rien based on his reddit post for yields, updated to patch 19.11.