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| − | {{Update|Review for December 2021, Version 19.11 changes (Changes to mining crystals, and to boost strengths that may affect boosted mining crystal lifespan).<br>
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| − | Categorization needs to be looked at. This article is about the damage to crystals, both the mining and the laser turret type. Image needs updating.}}
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| − | Focus Crystals (used by [[Turrets#Energy_Turrets|laser turrets]]), and Mining Crystals, used by [[ORE_Basic_Ship_and_Skill_Guide#Mining_crystals|mining lasers]] in EVE Online may receive "damage" and eventually be consumed (or in common terms, ''shatter''). These crystals have a Hit Point value much like any other destructible object, and shattering occurs when enough damage is taken by the crystal to lower its hit points to zero. The life expectancy of a given crystal, i.e. the average amount of time it may be used before it shatters, may be calculated from its attributes.
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| − | As with most transportable objects in EVE Online, one may right-click a combat or mining crystal and choose Show Info. The information in which we are interested are within the Attributes tab of the Show Info window.
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| − | == Attributes ==
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| − | <!--[[Image:ShowInfo PlagioclaseMiningCrystal1.jpg|thumb]]-->[[Image:ShowInfo-Simple Asteroid Mining Crystal Type A I.png|thumb]]
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| − | There are four different attributes that affect the life expectancy of a crystal. These attributes function identically for both combat and mining crystals.
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| − | === Structure Hitpoints ===
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| − | This is the total Hit Points of the crystal. Currently, all crystals in the game have exactly 1 HP.
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| − | === Volatility ===
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| − | This attribute is the chance of the crystal taking damage upon every activation cycle. For example, a Volatility of 10% would mean that each activation cycle the crystal has a 10% (1 in 10) chance of receiving damage. The actual amount of damage is fixed, and is given by the '''Volatility Damage''' attribute.
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| − | Some combat crystals have a 100% chance of damage per shot. It also means that the life expectancy of these combat crystals may be calculated exactly, because every shot will always damage the crystal. (Currently, all faction combat crystals have a 100% Volatility, i.e. a 100% chance of crystal damage inflicted per shot.)
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| − | === Volatility Damage ===
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| − | This is the actual amount of damage the crystal may receive during an activation cycle based upon its Volatility.
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| − | === Crystals Take Damage ===
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| − | This attribute is always either True or False. If it is True, then the crystal actually takes damage based upon the other attributes above, and it will eventually shatter.
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| − | Currently, the only crystals in the game whose Crystals Take Damage value is False are the Tech-1 combat crystals. These will never take damage and thus they may be used indefinitely. Note that if the value of this attribute is False, then it will not even be listed in the Attributes tab of the Show Info window.
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| − | === Activation Cycles ===
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| − | In terms of Volatility, an Activation Cycle is a single cycled use of a laser crystal by the turret within which it is loaded. With combat crystals, each time the energy weapon is fired is considered one cycle.
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| − | With mining crystals, a cycle may begin with the activation of the mining laser and may end with either the deactivation of the laser or the acquisition of materials (ore or ice). This means that a cycle is completed even if a mining laser is turned off early. Repeatedly turning a mining laser on and off will risk damaging the crystal whether or not any actual materials were mined.
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| − | == Formula ==
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| − | The formula for determining average life expectancy of a crystal is simple:
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| − | :<math>\text{Life Expectancy (in cycles)} = \text{Structure Hitpoints} / \text{Volatility} / \text{Volatility Damage}</math>
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| − | One may then multiply the expected cycles by the cycle time to calculate a crystal's life expectancy over time. Remember that Volatility is a percentage, so for example, a crystal with a Volatility of 10% must use the value 0.10 in the equation.
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| − | == Examples ==
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| − | The Simple Asteroid Mining Crystal Type A I has a Volatility of 10%, which means that for every cycle there is a 10% chance that it will receive damage. The amount of damage it receives will be the Volatility Damage value of 0.05 HP. It will shatter when its total damage reaches the Structure Hitpoints value of 1 HP.
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| − | This means that, on the average, the crystal has a life expectancy of <math>1 / 0.10 / 0.05 = 200</math> cycles. With a standard (unbonused) strip mining cycle time of 180 seconds, one may estimate that a crystal will endure approximately 36,000 seconds, or 10 hours, of constant mining before shattering.
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| − | The Simple Asteroid Mining Crystal Type A II has a Volatility of 12%. It has the same 0.05 HP Volatility Damage, and 1 HP Structure Hitpoints as the tech I variant. As a result, the crystal has a life expectancy of <math>1 / 0.12 / 0.05 = 166</math> cycles, about 8 hours.
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| − | {{Color box|color= gray|However, a ship using these crystals will likely not be operating unbonused; it will likely be flying with significant improvements to its mining cycle time. So, while an unbonused strip miner cycle takes 180 seconds and a tech II crystal would last around 8 hours, strip miners fitted to a max-skilled [[Hulk]] <ref group=Note name=Hulk />, enhanced by a Mining Laser Optimization Charge from a [[Rorqual]] <ref group= Note name=Rorqual />, can cycle in as little as 42 seconds, thus reducing the crystals lifespan to a mere 116 minutes. <!--edit break-->However, to compensate, if further enhanced by an Equipment Preservation charge, the crystals volatility can be reduced by up to 60%, resulting in a new life expectancy of <math>1 / 0.08 / 0.05 = 500</math> cycles, which at 42 seconds per cycle comes out to 21,000 seconds, or just short of 6 hours of constant mining before shattering.}}
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| − | === Brainstorm ===
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| − | {{Box||2=Mining Crystal Type A used in maxed skilled Hulk supported by a max skilled Rorqual with one Mining Command Burst charged with Mining Laser Optimization Charge:
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| − | '''Duration reduction'''<br>
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| − | Start with a duration(cycle time) of 180 sec.
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| − | * Hulk
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| − | ** 15% strip miner duration reduction for the role bonus. Reduces the duration to 153 sec.
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| − | ** 3% strip miner duration reduction for the Exhumers skill per level. According to [[Stacking penalties]] Mining laser cycle duration is not stacking penalized so lvl V gives 5x3= 15%. Reduces the duration to ~130 sec.
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| − | * Rorqual
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| − | ** 15% strip miner duration reduction for the Mining Laser Optimization Charge. Would reduce the duration to ~110 sec.
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| − | *** 5% Mining Foreman Burst effect increase for the Capital Industrial Ships per level. According to [[Stacking penalties]] Duration (cycle time) bonuses (other) are not stacking penalized so this should increase the Mining Laser Optimization Charge effect at lvl 5 by 5x5 = 25%. Increasing the effect increase to 18.75%. Which would reduce the duration to ~105 sec. Still nowhere close to the 42 sec mentioned in the text.
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| − | The above is done by taking the result of each step as the source for the next step'
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| − | When adding al the reduction % together before applying them to the duration that gives 15% + 15% + 18.75% = 48.75%. Which gives a duration of ~92 sec. This shaves of a few more seconds but still does not brings us to the 42 sec mentioned.
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| − | What am I missing?
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| − | }}
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| − | === Quick reference ===
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| − | {| class="wikitable"
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| − | ! Crystal Type !! Volatility !! Volatility Damage !! Expected Cycles
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| − | | Focal Crystals (Tech I)<ref group=Note name=T1Crystal /> || N/A || N/A || (Infinite)
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| − | |-
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| − | | Focal Crystals ([[Tech and meta levels#Faction Ammunition|Faction]]) || 100% || 0.00025HP || 4000
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| − | |-
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| − | | Focal Crystals (Tech II) || 10% || 0.01HP || ~1000
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| − | | Mining Crystals Type A (Tech I) || 10% || 0.05HP || ~200
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| − | | Mining Crystals Type A (Tech II) || 12% || 0.05HP || ~166
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| − | | Mining Crystals Type B (Tech I)<ref group=Note name=SimpleAstB /> || 15% || 0.05HP || ~133
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| − | | Mining Crystals Type B (Tech II) || 19.6% || 0.05HP || ~102
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| − | | Mining Crystals Type C (Tech I)<ref group=Note name=SimpleAstC /> || 24% || 0.05HP || ~83
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| − | |-
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| − | | Mining Crystals Type C (Tech II) || 30% || 0.05HP || ~66
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| − | | Mining Crystals Type A (Tech I) (max Rorqual-boosted) || ''4%'' || 0.05HP || ''~1000 ''
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| − | | Mining Crystals Type A (Tech II) (max Rorqual-boosted) || ''8%'' || 0.05HP || ''~500''
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| − | |}
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| − | == Notes ==
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| − | <references group=Note>
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| − | <ref name=T1Crystal>Crystals Take Damage is false so these crystals take no damage.</ref>
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| − | <ref name=Hulk>Applicable bonuses:
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| − | * Role bonus: 15% reduction in Strip Miner duration
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| − | * {{Sk|Exhumers}} bonus: 3% reduction in Strip Miner duration per level</ref>
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| − | <ref name=Rorqual>Applicable bonuses:
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| − | * [[Command Bursts|Mining Foreman Burst II]]: 25% bonus to the effect strength of charges launched
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| − | * {{Sk|Capital Industrial Ships}} bonus: 5% bonus to the effect strength per level
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| − | * Mining Laser Optimization Charge: 15% reduction in Strip Miner duration
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| − | * Mining Equipment Preservation charge: 15% reduction in the Crystal Volatility</ref>
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| − | <ref name=SimpleAstB>As of 19 September 2022 the in-game info for the Simple Asteroid Mining Crystal B I gives the Volatility as 10%</ref>
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| − | <ref name=SimpleAstC>As of 19 September 2022 the in-game info for the Simple Asteroid Mining Crystal C I gives the Volatility as 10%</ref>
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| − | </references>
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| − | {| class=wikitable
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| − | |+ Temp comparison table
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| − | ! Crystal Type !! Volatility !! Volatility Damage
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| − | | Asteroid/Moon Mining Crystal Type A I || 10% || 0.05
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| − | |-
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| − | | Asteroid/Moon Mining Crystal Type A II || 12% || 0.05
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| − | |-
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| − | | Asteroid/Moon Mining Crystal Type B I || 15% || 0.05
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| − | |-
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| − | | Simple Asteroid Mining Crystal Type B I || 10% || 0.05
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| − | | Asteroid/Moon Mining Crystal Type B II || 19.6% || 0.05
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| − | | Asteroid/Moon Mining Crystal Type C I || 24% || 0.05
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| − | |-
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| − | | Simple Asteroid Mining Crystal Type C I || 10% || 0.05
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| − | |-
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| − | | Asteroid/Moon Mining Crystal Type C II || 30% || 0.05
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| − | |}
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| − | <!--[[Category:Mining]]-->
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