# Crystal Mine

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Base Cost
Metal: 48
Crystal: 24
Deuterium: 0
Energy: 0

A Crystal Mine is a building that mines raw crystals. Crystals are one of the three basic resources that all emerging and established empires require for the manufacture of electrical circuits.

In-Game Description

Crystal mines supply the main resource used to produce electronic circuits and form certain alloy compounds. Mining crystal consumes some one and half times more energy than a mining metal, making crystal more valuable. Almost all ships and all buildings require crystal. Most crystals required to build spaceships, however, are very rare, and like metal can only be found at a certain depth. Therefore, building mines in deeper strata will increase the amount of crystal produced.

Requirements:

• Available from the start

Is Required for:

• N/A

## Statistics Edit

### Costs by Level Edit

$Cost = {\mbox{Base Cost}} \times 1.6 ^ {\mbox{Crystal Mine Level}- 1}$

(Base Cost is 48 metal and 24 crystal)

### Production Edit

$Crystal/hour = Acceleration \times 20\times{\mbox{Crystal Mine Level}} \times 1.1^{\mbox{Crystal Mine Level}}$

Where Acceleration is the Universe Acceleration factor.

### Energy Consumption Edit

$Energy = 10 \times{\mbox{Crystal Mine Level}} \times 1.1^{\mbox{Crystal Mine Level}}$

## Resource Stat Table: Crystal MineEdit

 Level Metal Cost Crystal Cost Energy Use Production Value 1 48 24 11 22 2 76 38 25 48 3 122 61 40 79 4 196 98 59 117 5 314 157 81 161 6 503 251 107 212 7 805 402 137 272 8 1,288 644 172 342 9 2,061 1,030 213 424 10 3,298 1,649 260 518 11 5,277 2,638 314 627 12 8,444 4,222 377 753 13 13,510 6,755 449 897 14 21,617 10,808 532 1,063 15 34,587 17,293 627 1,253 16 55,340 27,670 736 1,470 17 88,544 44,272 860 1,718 18 141,670 70,835 1,001 2,001 19 226,673 113,336 1,163 2,324 20 362,677 181,338 1,346 2,690 21 580,284 290,142 1,555 3,108 22 928,455 464,227 1,790 3,581 23 1,485,528 742,764 2,060 4,118 24 2,376,844 1,188,422 2,363 4,727 25 3,802,951 1,901,475 2,709 5,417 26 6,084,722 3,042,361 3,098 6,197 27 9,735,556 4,867,778 3,540 7,079 28 15,576,890 7,788,445 4,037 8,075 29 24,923,024 12,461,512 4,601 9,200 30 39,876,839 19,938,419 5,234 10,469 31 63,802,943 31,901,471 5,951 11,900 32 102,084,710 51,042,355 6,756 13,512 33 163,335,536 81,667,768 7,665 15,000 34 261,336,857 130,668,428 8,687 17,372

NOTE: Information in this table is based solely on the formulas found on this page.

*All Numbers are rounded down except for "Energy Use", which is rounded up in order to maintain accuracy with the tested in-game values. Not all in-game values were tested.

## Production and Profit vs CostEdit

${\mbox{Time (hours)}} = {3 \over {4 \times \mbox{Crystal Mine Level}}} \times ({16 \over 11}) ^ {\mbox{Crystal Mine Level}}$

The formula above gives the amount of time in which the total crystal production reaches the cost of that level of the crystal mine.

The graph above says that, for example, if you built crystal mine mine of level 14, it will take 10 hours to take your crystal back which you used to built that level. Crystal mine level 14 costs 10808 crystal, and produces 1063 crystals per hour. Indeed it takes about 10 hours to take your crystal back.

Example:

From the graph we observe that if you built crystal mine level 30, it will take it 80 days to produce as much as crystal you used to built that level.

Crystal mine 30 costs 19938419 crystals, and it produces 10469 crystals per hour. That makes 19938419 / 10469 = 1909.52 hours = 79.35 days to produce as much as crystal you used to built crystal mine level 30.

${\mbox{Time (hours)}} = {{12 \over {\mbox{Crystal Mine Level} + 10}} \times ({16 \over 11}) ^ {\mbox{Crystal Mine Level} - 1}}$

The formula above gives after what hours the profit of upgrading crystal mine adds up to catch the cost of upgrading. In other words, upgrading your crystal mine will cause an increment in your crystal production, if you integrate this increment over time, after some time this integration will be equal to the cost of the upgrading. This formula gives this time period.

The graph above says that, if you upgrade your crystal mine from level 12 to level 13, it will take approximately two days to start harvesting your investment.

From the graph above, we observe that if one upgrades his crystal mine from level 28 to level 29, he will start to make profit out of it after approximately 450 days, for level 35 to level 36 it becomes more than 5000 days!

Note that, all these production and profit calculations are considered only on crystal production. We assume that metal and energy is free. If we were to consider metal and energy issues, the formula would have been multi-variable, and the graphs would have been 4th dimensional. So in order to keep things as simple as possible, it is only explained on crystal production.