Mining
This page is out of date (v1.0.3). 
Mining is used for Mining ore, Rune Essence, and gems. Each Mining action takes 3 seconds, and can be reduced by 550% by purchasing pickaxe upgrades, 15% by purchasing the Master of Nature god upgrade, and 0.2 seconds by reaching the 50% Mastery pool checkpoint. The pickaxe upgrade and Master of Nature reductions are additive with each other, applying before the 0.2 second Mastery reduction, resulting in the lowest possible action time of 0.85 seconds. Ore and rune essence amounts can be doubled by wearing Mining Gloves with active charges. Raising Mining to Level 99 will unlock the Mining Skillcape for purchase from the Shop. Equipping the Mining Skillcape will give 1 bonus Coal Ore for every Mining action.
Contents
Mastery Unlocks
Item Mastery Unlocks
Level  Unlock 

1  Each Mastery Level increases maximum Rock HP by 1 
10  1% Chance of obtaining 2 ore 
20  2% Chance of obtaining 2 ore 
30  3% Chance of obtaining 2 ore 
40  4% Chance of obtaining 2 ore 
50  5% Chance of obtaining 2 ore 
60  6% Chance of obtaining 2 ore 
70  7% Chance of obtaining 2 ore 
80  8% Chance of obtaining 2 ore 
90  9% Chance of obtaining 2 ore 
99  15% Chance of obtaining 2 ore 
Mastery Pool Checkpoints
Pool %  Pool XP  Bonus 

10%  550,000 xp  +5% increased Mining Mastery XP 
25%  1,375,000 xp  Reduced Ore respawn time by 10% 
50%  2,750,000 xp  Reduce Mining interval by 0.2s 
95%  5,225,000 xp  All Rocks gain +10 Maximum HP (Bonus applied on Rock Respawn) 
Total Mastery Pool XP  5,500,000 
Rock HP
Rock HP determines how many ores can be extracted from a rock before it has to respawn. All rocks passively regenerate HP at a rate of 1 every 10 seconds, stopping when a rock reaches its maximum HP. Regeneration does not occur while a rock is respawning after being fully depleted.
Maximum rock HP is calculated as follows:
[math] \text{Rock HP}=5 + \text{Mastery Level} + \text{Bonus} [/math]
Where [math]\text{Bonus}[/math] starts at 0, increasing by:
 +10 if the 95% Mastery pool checkpoint has been reached
 +20 when both the Mole and Bear Summoning synergy and Perfect Swing Potion is active
 The below amounts when the relevant bonuses are active:
Source  Type  HP Bonus  Other Modifiers 

Terra  Constellation  +115 Mining Node HP  +115% chance to do zero damage to Ores and Rune Essence +115% Chance to Double Items in Mining +115% GP From Monsters +115% Global Accuracy +115 Hidden Strength Level +115% Mining Mastery XP +115% Melee Strength Bonus from Equipment +115% Chance to receive gems from Mining (Does not work for Rune Essence) +115% Strength Skill XP +115% Mining Skill XP 
Pipe Balance  Agility Obstacle 3  +10 Mining Node HP  +3% Chance to Preserve Resources in Skills 
Ice Jump  Agility Obstacle 9  +10 Mining Node HP  +5% Chance to Double Items Globally +20 Maximum Hitpoints +10% Food Healing Value +10% Chance to Preserve Resources in Skills +5% Slayer Skill XP +10% Slayer Coins 
Cool Rock  Pet  +5 Mining Node HP 
In addition, the following can be used to provide a chance to deal no damage to rock HP while Mining:
Source  Type  Preserve Chance  Other Modifiers 

Perfect Swing Potion IV  Item  +80% chance to do zero damage to Ores and Rune Essence  
Perfect Swing Potion III  Item  +40% chance to do zero damage to Ores and Rune Essence  
Perfect Swing Potion II  Item  +20% chance to do zero damage to Ores and Rune Essence  
Terra  Constellation  +115% chance to do zero damage to Ores and Rune Essence  +115% Chance to Double Items in Mining +115% GP From Monsters +115% Global Accuracy +115 Hidden Strength Level +115% Mining Mastery XP +115% Melee Strength Bonus from Equipment +115% Chance to receive gems from Mining (Does not work for Rune Essence) +115 Mining Node HP +115% Strength Skill XP +115% Mining Skill XP 
Perfect Swing Potion I  Item  +10% chance to do zero damage to Ores and Rune Essence  
Miner's Helmet  Item (Helmet)  +3% chance to do zero damage to Ores and Rune Essence  +2% Mining Mastery XP 
Using these bonuses effectively increases a rock's HP to [math]\frac{\text{Rock HP}}{1  \text{Preserve Chance}}[/math]. For example, a rock with a max HP of 12 while the Perfect Swing Potion III is being used will have an effective max HP of [math]\frac{12}{1  0.4} = 20[/math].
Due to passive rock HP regeneration, it is possible (given a sufficiently high maximum rock HP) to ensure a rock always has HP and never has to respawn, no matter how long it has been mined for. To achieve this, the player's chance to deal zero damage to ores must be at least [math]\left \lceil 1  \frac{\text{Action Interval (seconds)}}{10} \right \rceil[/math].
Therefore, the chance required in order to avoid respawns at the lowest possible interval (0.85 seconds) is [math]\left \lceil 1  \frac{0.85}{10} \right \rceil = \left \lceil 0.915 \right \rceil = 0.92 = 92\%[/math] or higher. This can be achieved by using Perfect Swing Potion IV, Miner's Helmet, and at least +9% from Terra.
Below lists the rock HP at various Mastery levels with and without the maximum possible bonus:
Mastery Level  Max Rock HP  

Without Bonus  With Bonus  
1  6  61 
2  7  62 
3  8  63 
4  9  64 
5  10  65 
10  15  70 
20  25  80 
50  55  110 
75  80  135 
99  104  159 
Skillcape
The skillcape can be purchased from the store for 1,000,000 after the player reaches Level 99.
Skillcape  Name  Effect 

Mining Skillcape  +1 Coal Ore per Ore Mined. (Item doubling does not apply) 
Pet
The pet can be unlocked by doing any Mining action.
Pet  Name  Effect 

Cool Rock  +5 Mining Node HP 
Pickaxes
Pickaxes are permanent upgrades purchased from the Shop that decrease the amount of time it takes to mine ore by their bonus speed percentage. In addition they provide a chance to double ores. The bonuses provided by these upgrades are permanently active once purchased, they do not need to be equipped or otherwise enabled.
Ores
Higher tiers of ore are unlocked as the player's Mining level increases. Mining Rune Essence yields double the amount of ore, however Gem Gloves will not work when Mining it. To begin Mining Dragonite Ore the player must have at least 271 Mining mastery levels in total.
Ore  Level  XP  Respawn Time  Ore Value  

Copper Ore  1  7  5s  2  
Tin Ore  1  7  5s  2  
Rune Essence  1  5  1s  0  
Iron Ore  15  14  10s  5  
Silver Ore  30  25  15s  25  
Coal Ore  30  18  10s  13  
Gold Ore  40  28  15s  30  
Mithril Ore  50  65  20s  65  
Adamantite Ore  70  71  30s  88  
Runite Ore  80  86  1m  100  
Dragonite Ore  95  101  2m  135 
Gems
Each Mining action has a 1% gem find chance, which can be increased by +115% when the increased chance to receive gems modifier from Terra is active, or can be increased to 100% when wearing Gem Gloves. If the Clue Chasers Insignia is equipped, then this chance is increased by 10% of its current value (For example, a 20% chance becomes [math]20\% \times 1.1 = 22\%[/math] when Clue Chasers Insignia is equipped). The chance to receive a gem is capped at 100%, so any bonuses above this limit have no effect.
The Mole and Octopus synergy may also be used for a 15% chance to receive an additional gem of any type whenever a gem is dropped while Mining.
The possible gem drops are shown in the table below:
Gem  Gem Chance  Gem Price  

Topaz  50.0%  225  
Sapphire  17.5%  335  
Ruby  17.5%  555  
Emerald  10.0%  555  
Diamond  5.0%  1,150 
Potion
The Perfect Swing Potion provides a chance to mine from a rock without lowering the rock's HP.
Potion  Tier  Charges  Effect 

I  30  +10% Chance to deal no Damage to a Mining Node  
II  50  +20% Chance to deal no Damage to a Mining Node  
III  80  +40% Chance to deal no Damage to a Mining Node  
IV  100  +80% Chance to deal no Damage to a Mining Node 
Summoning Boosts
This table shows all the Summoning Familiars and Synergies that provide a bonus to Mining.
Familiar 1  Familiar 2  Effect  

Mole  +3% Chance to gain +1 additional resource in Mining. Cannot be doubled  
Mole  Octopus  When receiving a Gem from Mining or Fishing, there is a +15% chance to get another random Gem.  
Mole  Crow  Base quantity for Rune Essence in Mining is doubled.  
Mole  Monkey  Base quantity for Silver Ore & Gold Ore is doubled in Mining.  
Mole  Salamander  +15% chance to receive a smithed version of the Ore you are Mining.  
Mole  Bear  While the Perfect Swing Potion is active in Mining, all Mining Nodes have +20 Max HP. 
Skill Boosts
This table lists most sources of Miningspecific modifier boosts. For a list of boosts that apply to all skills, see the Skill Boosts page. This list does not contain boosts provided from Mastery rewards.
Source  Type  Mining Boosts  Other Modifiers 

Perfect Swing Potion I  Item  +10% chance to do zero damage to Ores and Rune Essence  
Perfect Swing Potion II  Item  +20% chance to do zero damage to Ores and Rune Essence  
Perfect Swing Potion III  Item  +40% chance to do zero damage to Ores and Rune Essence  
Perfect Swing Potion IV  Item  +80% chance to do zero damage to Ores and Rune Essence  
Miner's Helmet  Item (Helmet)  +3% chance to do zero damage to Ores and Rune Essence +2% Mining Mastery XP 

Ancient Ring of Skills  Item (Ring)  +8% Mining Skill XP  +8% Alt. Magic Skill XP +8% Woodcutting Skill XP +8% Fishing Skill XP +8% Firemaking Skill XP +8% Cooking Skill XP +8% Smithing Skill XP +8% Farming Skill XP +8% Thieving Skill XP +8% Fletching Skill XP +8% Crafting Skill XP +8% Runecrafting Skill XP +8% Herblore Skill XP +8% Agility Skill XP +8% Summoning Skill XP +8% Astrology Skill XP 
Mole  Item (Summon1, Summon2)  +3% Chance to gain +1 additional resource in Mining. Cannot be doubled  
Pipe Balance  Agility Obstacle 3  +10 Mining Node HP  +3% Chance to Preserve Resources in Skills 
Rock Climb  Agility Obstacle 5  +5% Chance to Double Items in Mining  10% Chance to Preserve Resources in Skills +5% Chance to Double Items in Fishing +5% Chance to Double Items in Woodcutting +5% Chance to Double Items in Thieving 
Ice Jump  Agility Obstacle 9  +10 Mining Node HP  +5% Chance to Double Items Globally +20 Maximum Hitpoints +10% Food Healing Value +10% Chance to Preserve Resources in Skills +5% Slayer Skill XP +10% Slayer Coins 
Terra  Constellation  +115% chance to do zero damage to Ores and Rune Essence +115% Chance to Double Items in Mining +115% Mining Mastery XP +115 Mining Node HP +115% Mining Skill XP 
+115% GP From Monsters +115% Global Accuracy +115 Hidden Strength Level +115% Melee Strength Bonus from Equipment +115% Chance to receive gems from Mining (Does not work for Rune Essence) +115% Strength Skill XP 
Cool Rock  Pet  +5 Mining Node HP  
Adamant Pickaxe  Upgrade  10% Mining Interval +1% Chance to Double Ores in Mining 

Black Pickaxe  Upgrade  5% Mining Interval +1% Chance to Double Ores in Mining 

Dragon Pickaxe  Upgrade  10% Mining Interval +1% Chance to Double Ores in Mining 

Iron Pickaxe  Upgrade  5% Mining Interval +1% Chance to Double Ores in Mining 

Master of Nature  Upgrade  15% Mining Interval  15% Woodcutting Interval 
Mithril Pickaxe  Upgrade  5% Mining Interval +1% Chance to Double Ores in Mining 

Rune Pickaxe  Upgrade  10% Mining Interval +1% Chance to Double Ores in Mining 

Steel Pickaxe  Upgrade  5% Mining Interval +1% Chance to Double Ores in Mining 
Trivia
Prior to the release of V1.0, the source code file for the Mining skill was called rockHitting.js
, which is in contrast to other skills' source files which are named eponymously (i.e., woodcutting.js
for Woodcutting). This used to be case for Mining as well[1], however it turned out that some browsers or extensions block a script called mining.js
, likely in an attempt to prevent unwanted crypto mining, so the file was eventually renamed.
Upon release of V1.0, Mining became one of a small number of tickbased skills, at which point the source file was renamed once more to rockTicking.js
.
Melvor Idle version v1.0.5 (Released: 5th July 2022)  

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