Crystal Mine

The Crystal Mine extracts silicon crystals from the planet's surface. Crystal is needed for electronics, shields, and advanced research. It is produced at roughly half the rate of metal.
Base Stats
| Property | Value |
|---|---|
| Base cost | 48 Metal · 24 Crystal |
| Cost factor | 1.6× per level |
| Energy consumption | increases each level |
| Prerequisites | none |
Cost Formula
Cost Table
| Level | Metal | Crystal |
|---|---|---|
| 1 | 48 | 24 |
| 5 | 314 | 157 |
| 10 | 3,298 | 1,649 |
| 15 | 34,587 | 17,293 |
| 20 | 362,677 | 181,338 |
| 25 | 3,802,951 | 1,901,475 |
Production Formula
The base production of 15 units/hour is added on top.
Production Table (speed ×1)
| Level | Crystal/h |
|---|---|
| 1 | 22 |
| 5 | 161 |
| 10 | 519 |
| 15 | 1,329 |
| 20 | 3,007 |
| 25 | 6,349 |
| 30 | 12,883 |
Energy Consumption
Like all mines, the Crystal Mine's output scales down proportionally when energy is in deficit. See Metal Mine for details.
Tips
After Metal Mine, level Crystal Mine to roughly Metal Mine − 2 to 3 levels. Crystal is the second most consumed resource.
Plasma Technology boosts Crystal Mine output by 0.66% per level (less than metal's 1%).
The Crystal Mine has a 1.6× cost factor vs 1.5× for the Metal Mine — it gets expensive faster. Don't over-level it early.
See Also
Metal Mine · Deuterium Synthesizer · Solar Plant · Plasma Technology