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Giant rock crab

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Giant rock crabs are massive versions of the weaker Rock crab. They lie in wait for prey, disguised as large boulders. When approached, they attack, unless they have become tolerant, in which case they remain as "boulders" - attempting to target them gives the message "Invalid target."

Giant Rock Crabs are good droppers of charms, as they drop 3 of them at a time. They also drop various black equipment (platebody and claws), worth a decent sum of coins. They are the only droppers of rock-shell parts, which are needed to create Rock-shell armour.

LocationsEdit

Chaos Tunnels entrances

Use the middle south entrance just east of the wizard who teleports players to the Abyss. This is labelled entrance number 2 and goes directly to the giant rock crabs.

StrategyEdit

Giant Rock Crabs have a fairly high resistance to Melee and Ranged attacks, and thus are only effectively killed using Magic.

In the Chaos Tunnels, they will eventually lose aggression. When they do, just leave the cave via the rope exit. Then just go straight back down the crevice.

RetreatEdit

The Giant Rock Crab is one of few monsters that will retreat from battle when they become critically wounded.

DropsEdit

100%Edit

Item Quantity Rarity GE price
BonesBones1Always182

Runes/TalismansEdit

Item Quantity Rarity GE price
Water runeWater rune1–39Common11–429
Earth runeEarth rune1–40Common10–400
Air talismanAir talisman1Uncommon142
Mind talismanMind talisman1Uncommon271
Fire talismanFire talisman1Uncommon1,785
Cosmic talismanCosmic talisman1Rare419
Body talismanBody talisman1Rare251
Water talismanWater talisman1Uncommon6,803
Earth talismanEarth talisman1Uncommon1,754
Nature talismanNature talisman1Rare1,214
Chaos talismanChaos talisman1Uncommon962

Weaponry/ArmourEdit

Item Quantity Rarity GE price
Steel platebodySteel platebody1Common2,602
Black clawBlack claw1Common[1]601
Off-hand black clawOff-hand black claw1Common[1]683
Black platebodyBlack platebody1Common1,743
Mithril hatchetMithril hatchet1Common1,035
Rock-shell glovesRock-shell gloves1Uncommon7,810
Rock-shell bootsRock-shell boots1Uncommon4,533
Black warhammerBlack warhammer1Uncommon1,089
Off-hand black warhammerOff-hand black warhammer1Uncommon397
Adamant longswordAdamant longsword1Uncommon4,300
Adamant warhammerAdamant warhammer1Rare2,907
  1. ^ a b Main hand and off hand claws are dropped together.

CharmsEdit

No charmGold charmGreen charmCrimson charmBlue charm
2–3%79–80%9–10%6–7%2%
Represents a 90% confidence range.
Based on a sample of 6,143 kills.
3 charms are dropped at a time.
Add data to the log
(Requires JavaScript to be enabled)

SeedsEdit

Item Quantity Rarity GE price
Poison ivy seed 5Poison ivy seed1Uncommon41
Belladonna seed 5Belladonna seed1Uncommon466
Guam seed 5Guam seed1Uncommon6
Marrentill seed 5Marrentill seed1Uncommon7
Tarromin seed 5Tarromin seed1Uncommon22
Harralander seed 5Harralander seed1Uncommon20
Toadflax seed 5Toadflax seed1Uncommon498
Ranarr seed 5Ranarr seed1Rare906
Irit seed 5Irit seed1Rare186
Avantoe seed 5Avantoe seed1Rare245
Snapdragon seed 5Snapdragon seed1Rare468
Cadantine seed 5Cadantine seed1Rare4,404
Lantadyme seed 5Lantadyme seed1Rare914
Kwuarm seed 5Kwuarm seed1Rare2,100
Dwarf weed seed 5Dwarf weed seed1Very rare924
Torstol seed 5Torstol seed1Very rare2,975

HerbsEdit

Item Quantity Rarity GE price
Grimy guamGrimy guam1Uncommon110
Grimy marrentillGrimy marrentill1Uncommon152
Grimy tarrominGrimy tarromin1Uncommon35
Grimy harralanderGrimy harralander1Uncommon87
Grimy ranarrGrimy ranarr1Rare2,782
Grimy iritGrimy irit1Rare2,354
Grimy avantoeGrimy avantoe1Rare2,702
Grimy kwuarmGrimy kwuarm1Rare5,207
Grimy cadantineGrimy cadantine1Rare4,857
Grimy lantadymeGrimy lantadyme1Rare3,285
Grimy dwarf weedGrimy dwarf weed1Rare3,639

OtherEdit

Item Quantity Rarity GE price
Coins 100Coins23–137Common23–137
Raw lobsterRaw lobster1Common113
Raw bassRaw bass1Common251
TinderboxTinderbox1Common150
CasketCasket1Rare3,752
Rock-shell splinterRock-shell splinter1Uncommon11,116
Rock-shell chunkRock-shell chunk1Rare8,396
Rock-shell shardRock-shell shard1Rare8,477
Clue scroll (medium)Clue scroll (medium)1Very rareNot sold
Starved ancient effigyStarved ancient effigy1Very rareNot sold

Rare drop table dropsEdit

This monster has access to the rare drop table.
A ring of wealth or collector's insignia are not required to access the table.
Show/hide rare drop table
Item Quantity Rarity GE price
Coins 1000Coins250–500; 3,000Common250–3,000
Uncut sapphireUncut sapphire1Common930
Uncut emeraldUncut emerald1Common1,841
Uncut rubyUncut ruby1Common3,121
Uncut diamondUncut diamond1Common3,842
Uncut diamondUncut diamond45–55 (noted)Rare172,890–211,310
Loop half of a keyLoop half of a key1Common15,466
Tooth half of a keyTooth half of a key1Common25,960
Uncut dragonstoneUncut dragonstone1Uncommon12,508
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare562,860–687,940
Dragon longswordDragon longsword1Common57,779
Dragon spearDragon spear1Rare36,087
BattlestaffBattlestaff180–220 (noted)Rare1,231,560–1,505,240
Rune javelinRune javelin5Rare930
Rune platebodyRune platebody1Uncommon37,454
Rune platebodyRune platebody15–25 (noted)Rare561,810–936,350
Shield left halfShield left half1Rare63,800
Dragon helmDragon helm1Uncommon58,519
Rune arrowheads 5Rune arrowheads113–137Common20,114–24,386
Onyx bolts 5Onyx bolts135–165Very rare1,096,740–1,340,460
Vecna skullVecna skull1Rare70,854
Chaos talismanChaos talisman1Rare962
Nature talismanNature talisman1Rare1,214
Water talismanWater talisman65–82 (noted)Rare442,195–557,846
Earth talismanEarth talisman65–82 (noted)Rare114,010–143,828
Fire talismanFire talisman25–35 (noted)Rare44,625–62,475
Raw lobsterRaw lobster135–165 (noted)Common15,255–18,645
Raw sharkRaw shark225–275 (noted)Uncommon203,850–249,150
Big bonesBig bones76–90 (noted)Uncommon25,840–30,600
Dragon bonesDragon bones180–220 (noted)Rare311,580–380,820
CoalCoal200–1,100 (noted)Uncommon38,400–211,200
Gold oreGold ore90–110 (noted)Common12,780–15,620
Adamantite oreAdamantite ore180–220 (noted)Uncommon129,240–157,960
Adamant barAdamant bar14–16 (noted)Common34,034–38,896
Adamant barAdamant bar135–165 (noted)Rare328,185–401,115
Runite oreRunite ore90–110 (noted)Rare986,490–1,205,710
Rune barRune bar(noted)Common41,289
Rune barRune bar45–55 (noted)Rare619,335–756,965
Grimy torstolGrimy torstol90–110 (noted)Uncommon388,620–474,980
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon419,130–512,270
Super restore (4)Super restore (4)45–55 (noted)Uncommon226,350–276,650
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon150,615–184,085
Lantadyme seed 5Lantadyme seed14–16Uncommon12,796–14,624
Dwarf weed seed 5Dwarf weed seed14–16Uncommon12,936–14,784
Magic seed 5Magic seed4Uncommon266,124
Palm tree seed 5Palm tree seed10Rare1,005,350
FlaxFlax450–550 (noted)Common6,750–8,250
Molten glassMolten glass45–55 (noted)Common11,475–14,025
Soft claySoft clay450–550 (noted)Uncommon171,450–209,550
Yew logsYew logs68–82Uncommon10,676–12,874
Yew logsYew logs675–825 (noted)Rare105,975–129,525
Teak plankTeak plank45–55 (noted)Uncommon30,195–36,905
Mahogany plankMahogany plank270–330 (noted)Rare564,840–690,360
Brawling gloves (Melee)Brawling gloves (Melee)1Very rareNot sold
Brawling gloves (Magic)Brawling gloves (Magic)1Very rareNot sold
Brawling gloves (Ranged)Brawling gloves (Ranged)1Very rareNot sold
Brawling gloves (Agility)Brawling gloves (Agility)1Very rareNot sold
Brawling gloves (Cooking)Brawling gloves (Cooking)1Very rareNot sold
Brawling gloves (FM)Brawling gloves (FM)1Very rareNot sold
Brawling gloves (Fishing)Brawling gloves (Fishing)1Very rareNot sold
Brawling gloves (Hunter)Brawling gloves (Hunter)1Very rareNot sold
Brawling gloves (Mining)Brawling gloves (Mining)1Very rareNot sold
Brawling gloves (Prayer)Brawling gloves (Prayer)1Very rareNot sold
Brawling gloves (Smithing)Brawling gloves (Smithing)1Very rareNot sold
Brawling gloves (Thieving)Brawling gloves (Thieving)1Very rareNot sold
Brawling gloves (WC)Brawling gloves (WC)1Very rareNot sold
Crystal triskelion fragment 1Crystal triskelion fragment 11Very rareNot sold
Crystal triskelion fragment 2Crystal triskelion fragment 21Very rareNot sold
Crystal triskelion fragment 3Crystal triskelion fragment 31Very rareNot sold

Universal dropsEdit

Universal drops are dropped by nearly every monster outside of Daemonheim.
These drops are dropped alongside main drops.
Item Quantity Rarity GE price
Key tokenKey token1RareNot sold

TriviaEdit

  • After the 27 May 2009 update, Giant Rock Crabs dropped Charms in groups of three instead of ten. This hidden update initially angered players, though complaints died down as the rate of charm dropping was also increased.
Facts about "Giant rock crab"RDF feed
All Combat experience399 +
All Combat level95 +
All Is members onlytrue
All Release date1 August 2005 +
Combat experience399 +
Combat level95 +
Drop JSON{ "name": "Bones", "quantity": [1,1], "rarity": "Always" }, { "name": "Water rune", "quantity": [1,39], "rarity": "Common" }, { "name": "Earth rune", "quantity": [1,40], "rarity": "Common" }, { "name": "Air talisman", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Mind talisman", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Fire talisman", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Cosmic talisman", "quantity": [1,1], "rarity": "Rare" }, { "name": "Body talisman", "quantity": [1,1], "rarity": "Rare" }, { "name": "Water talisman", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Earth talisman", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Nature talisman", "quantity": [1,1], "rarity": "Rare" }, { "name": "Chaos talisman", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Steel platebody", "quantity": [1,1], "rarity": "Common" }, { "name": "Black claw", "quantity": [1,1], "rarity": "Common" }, { "name": "Off-hand black claw", "quantity": [1,1], "rarity": "Common" }, { "name": "Black platebody", "quantity": [1,1], "rarity": "Common" }, { "name": "Mithril hatchet", "quantity": [1,1], "rarity": "Common" }, { "name": "Rock-shell gloves", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Rock-shell boots", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Black warhammer", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Off-hand black warhammer", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Adamant longsword", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Adamant warhammer", "quantity": [1,1], "rarity": "Rare" }, { "name": "Poison ivy seed", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Belladonna seed", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Guam seed", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Marrentill seed", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Tarromin seed", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Harralander seed", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Toadflax seed", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Ranarr seed", "quantity": [1,1], "rarity": "Rare" }, { "name": "Irit seed", "quantity": [1,1], "rarity": "Rare" }, { "name": "Avantoe seed", "quantity": [1,1], "rarity": "Rare" }, { "name": "Snapdragon seed", "quantity": [1,1], "rarity": "Rare" }, { "name": "Cadantine seed", "quantity": [1,1], "rarity": "Rare" }, { "name": "Lantadyme seed", "quantity": [1,1], "rarity": "Rare" }, { "name": "Kwuarm seed", "quantity": [1,1], "rarity": "Rare" }, { "name": "Dwarf weed seed", "quantity": [1,1], "rarity": "Very rare" }, { "name": "Torstol seed", "quantity": [1,1], "rarity": "Very rare" }, { "name": "Grimy guam", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Grimy marrentill", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Grimy tarromin", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Grimy harralander", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Grimy ranarr", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy irit", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy avantoe", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy kwuarm", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy cadantine", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy lantadyme", "quantity": [1,1], "rarity": "Rare" }, { "name": "Grimy dwarf weed", "quantity": [1,1], "rarity": "Rare" }, { "name": "Coins", "quantity": [23,137], "rarity": "Common" }, { "name": "Raw lobster", "quantity": [1,1], "rarity": "Common" }, { "name": "Raw bass", "quantity": [1,1], "rarity": "Common" }, { "name": "Tinderbox", "quantity": [1,1], "rarity": "Common" }, { "name": "Casket", "quantity": [1,1], "rarity": "Rare" }, { "name": "Rock-shell splinter", "quantity": [1,1], "rarity": "Uncommon" }, { "name": "Rock-shell chunk", "quantity": [1,1], "rarity": "Rare" }, { "name": "Rock-shell shard", "quantity": [1,1], "rarity": "Rare" }, { "name": "Clue scroll (medium)", "quantity": [1,1], "rarity": "Very rare" }, { "name": "Starved ancient effigy", "quantity": [1,1], "rarity": "Very rare" } and { "name": "Key token", "quantity": [1,1], "rarity": "Rare" }
Drops itemBones +, Water rune +, Earth rune +, Air talisman +, Mind talisman +, Fire talisman +, Cosmic talisman +, Body talisman +, Water talisman +, Earth talisman +, Nature talisman +, Chaos talisman +, Steel platebody +, Black claw +, Off-hand black claw +, Black platebody +, Mithril hatchet +, Rock-shell gloves +, Rock-shell boots +, Black warhammer +, Off-hand black warhammer +, Adamant longsword +, Adamant warhammer +, Poison ivy seed +, Belladonna seed +, Guam seed +, Marrentill seed +, Tarromin seed +, Harralander seed +, Toadflax seed +, Ranarr seed +, Irit seed +, Avantoe seed +, Snapdragon seed +, Cadantine seed +, Lantadyme seed +, Kwuarm seed +, Dwarf weed seed +, Torstol seed +, Grimy guam +, Grimy marrentill +, Grimy tarromin +, Grimy harralander +, Grimy ranarr +, Grimy irit +, Grimy avantoe +, Grimy kwuarm +, Grimy cadantine +, Grimy lantadyme +, Grimy dwarf weed +, Coins +, Raw lobster +, Raw bass +, Tinderbox +, Casket +, Rock-shell splinter +, Rock-shell chunk +, Rock-shell shard +, Clue scroll (medium) +, Starved ancient effigy + and Key token +
Drops item from RDTCoins +, Uncut sapphire +, Uncut emerald +, Uncut ruby +, Uncut diamond +, Loop half of a key +, Tooth half of a key +, Uncut dragonstone +, Dragon longsword +, Dragon spear +, Battlestaff +, Rune javelin +, Rune platebody +, Shield left half +, Dragon helm +, Rune arrowheads +, Onyx bolts +, Vecna skull +, Chaos talisman +, Nature talisman +, Water talisman +, Earth talisman +, Fire talisman +, Raw lobster +, Raw shark +, Big bones +, Dragon bones +, Coal +, Gold ore +, Adamantite ore +, Adamant bar +, Runite ore +, Rune bar +, Grimy torstol +, Grimy snapdragon +, Super restore (4) +, Prayer potion (4) +, Lantadyme seed +, Dwarf weed seed +, Magic seed +, Palm tree seed +, Flax +, Molten glass +, Soft clay +, Yew logs +, Teak plank +, Mahogany plank +, Brawling gloves (Melee) +, Brawling gloves (Magic) +, Brawling gloves (Ranged) +, Brawling gloves (Agility) +, Brawling gloves (Cooking) +, Brawling gloves (FM) +, Brawling gloves (Fishing) +, Brawling gloves (Hunter) +, Brawling gloves (Mining) +, Brawling gloves (Prayer) +, Brawling gloves (Smithing) +, Brawling gloves (Thieving) +, Brawling gloves (WC) +, Crystal triskelion fragment 1 +, Crystal triskelion fragment 2 + and Crystal triskelion fragment 3 +
Is members onlytrue
Release date1 August 2005 +

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