Ammonite Crab

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Ammonite Crab
Ammonite Crab.png
Released7 September 2017 (Update)
MembersYes
Combat level25
Size2x2
ExaminePraise Helix!
Combat info
Max hit1
AggressiveYes
PoisonousNo
Attack styleCrush
Attack speedMonster attack speed 4.png
Respawn time50 ticks (30 seconds)
Combat icon.png Combat stats
Hitpoints icon.pngAttack icon.pngStrength icon.pngDefence icon.pngMagic icon.pngRanged icon.png
10011111
Attack icon.png Aggressive stats
Monster attack bonusMonster strength bonusMagic icon.pngMonster magic strength bonusRanged icon.pngMonster ranged strength bonus
+0+0+0+0+0+0
Defence icon.png Defensive stats
White dagger.pngWhite scimitar.pngWhite warhammer.pngMagic icon.pngRanged icon.png
+0+0+0+0+0
Immunities
PoisonNot immune
VenomNot immune
Advanced data
Monster ID7799
Fossil Rock
Fossil Rock.png
Released7 September 2017 (Update)
MembersYes
RaceCrab
LocationFossil Island
ExamineAn outcrop embedded with an ammonite fossil.
Advanced data
NPC ID7800

Ammonite Crabs can be found on the most coastal areas and the most northern beaches of Fossil Island, as well as in the northern Wyvern Cave.

Locations[edit | edit source]

Location Levels Members Spawns Map
Mushroom Forest25Member icon.png28Maplink
Fossil Island Volcano25Member icon.png4Maplink
Wyvern Cave - northern cave25Member icon.png7Maplink

Training Combat[edit | edit source]

Ammonite crabs are one of the creatures that are recommended for training of all levels. They are similar to rock and sand crabs as they have virtually no combat stats but have the highest health of all the crabs. Low level players should bring some food.

Like all other crabs, ammonite crabs start off aggressive but will become tolerant of the player after ten minutes. As they must be active in order to be fought, players must reset their aggression timer once they become tolerant.

Drops[edit | edit source]

Drop rates estimated based on 1,170,000 kills from the Drop Rate Project, unless otherwise cited.

The average Ammonite Crab kill is worth 178.

Weapons[edit | edit source]

Item Quantity Rarity Price High Alch
Iron pickaxe.png: Ammonite Crab drops Iron pickaxe with rarity 5/128 in quantity 1Iron pickaxe15/12811084

Fossilised currency[edit | edit source]

Item Quantity Rarity Price High Alch
Numulite.png: Ammonite Crab drops Numulite with rarity 29/128 in quantity 4Numulite429/128112120
Numulite.png: Ammonite Crab drops Numulite with rarity 8/128 in quantity 2Numulite28/1285660
Numulite.png: Ammonite Crab drops Numulite with rarity 6/128 in quantity 8Numulite86/128224240
Numulite.png: Ammonite Crab drops Numulite with rarity 6/128 in quantity 14Numulite146/128392420

Materials[edit | edit source]

Item Quantity Rarity Price High Alch
Volcanic ash.png: Ammonite Crab drops Volcanic ash with rarity 6/128 in quantity 1Volcanic ash16/12875120
Iron ore.png: Ammonite Crab drops Iron ore with rarity 4/128 in quantity 1Iron ore14/12814910
Tin ore.png: Ammonite Crab drops Tin ore with rarity 4/128 in quantity 3Tin ore34/1282103
Opal bolt tips.png: Ammonite Crab drops Opal bolt tips with rarity 2/128 in quantity 5Opal bolt tips52/12838520
Coal.png: Ammonite Crab drops Coal with rarity 2/128 in quantity 2Coal22/12830454
Copper ore.png: Ammonite Crab drops Copper ore with rarity 2/128 in quantity 3Copper ore32/1282103

Oysters and Seaweed[edit | edit source]

Item Quantity Rarity Price High Alch
Oyster.png: Ammonite Crab drops Oyster with rarity 12/128 in quantity 2Oyster212/128114240
Oyster.png: Ammonite Crab drops Oyster with rarity 9/128 in quantity 1Oyster19/12857120
Seaweed.png: Ammonite Crab drops Seaweed with rarity 8/128 in quantity 1-2Seaweed1–28/12823–461–2
Empty oyster.png: Ammonite Crab drops Empty oyster with rarity 3/128 in quantity 1Empty oyster13/128Not sold3
Seaweed.png: Ammonite Crab drops Seaweed with rarity 2/128 in quantity 5Seaweed52/1281155
Edible seaweed.png: Ammonite Crab drops Edible seaweed with rarity 2/128 in quantity 2Edible seaweed22/1281242
Oyster pearl.png: Ammonite Crab drops Oyster pearl with rarity 1/128 in quantity 1Oyster pearl11/12811667
Empty oyster.png: Ammonite Crab drops Empty oyster with rarity 1/128 in quantity 3Empty oyster31/128Not sold9

Other[edit | edit source]

Item Quantity Rarity Price High Alch
This does not exist.NothingN/A15/128N/AN/A
Fishing bait.png: Ammonite Crab drops Fishing bait with rarity 2/128 in quantity 10Fishing bait102/1284010
Calcite.png: Ammonite Crab drops Calcite with rarity 1/128 in quantity 1Calcite11/128[d 1]6518
Pyrophosphite.png: Ammonite Crab drops Pyrophosphite with rarity 1/128 in quantity 1Pyrophosphite11/128[d 1]5518
Seaweed spore.png: Ammonite Crab drops Seaweed spore with rarity 1/128 in quantity 2Seaweed spore21/1281,19224
Casket.png: Ammonite Crab drops Casket with rarity 1/128 in quantity 1Casket11/12895930
  1. ^ 1.0 1.1 Calcite and pyrophosphite are always dropped together.

Gem drop table[edit | edit source]

There is a 1/128 chance of rolling the gem drop table.

Item Quantity Rarity Price High Alch
This does not exist.NothingN/A1/256.47; Never[d 1]N/AN/A
Uncut sapphire.png: Ammonite Crab drops Uncut sapphire with rarity 1/512 in quantity 1Uncut sapphire11/512; 1/260[d 2]35415
Uncut emerald.png: Ammonite Crab drops Uncut emerald with rarity 1/1,024 in quantity 1Uncut emerald11/1,024; 1/520[d 2]55030
Uncut ruby.png: Ammonite Crab drops Uncut ruby with rarity 1/2,048 in quantity 1Uncut ruby11/2,048; 1/1,040[d 2]1,15860
Chaos talisman.png: Ammonite Crab drops Chaos talisman with rarity 1/5,461.33 in quantity 1Chaos talisman11/5,461.33; 1/2,773.33[d 2][d 3]1542
Nature talisman.png: Ammonite Crab drops Nature talisman with rarity 1/5,461.33 in quantity 1Nature talisman11/5,461.33; 1/2,773.33[d 2][d 3]4752
Uncut diamond.png: Ammonite Crab drops Uncut diamond with rarity 1/8,192 in quantity 1Uncut diamond11/8,192; 1/4,160[d 2]2,772120
Loop half of key.png: Ammonite Crab drops Loop half of key with rarity 1/16,384 in quantity 1Loop half of key11/16,384; 1/8,320[d 2]10,15060
Tooth half of key.png: Ammonite Crab drops Tooth half of key with rarity 1/16,384 in quantity 1Tooth half of key11/16,384; 1/8,320[d 2]10,14960
Rune javelin.png: Ammonite Crab drops Rune javelin with rarity 1/16,384 in quantity 5Rune javelin51/16,384; 1/8,320[d 2]7301,200
Rune spear.png: Ammonite Crab drops Rune spear with rarity 1/262,144 in quantity 1Rune spear11/262,144; 1/15,600[d 2][d 4]11,83612,480
Shield left half.png: Ammonite Crab drops Shield left half with rarity 1/524,288 in quantity 1Shield left half11/524,288; 1/31,200[d 2][d 4]65,47366,000
Dragon spear.png: Ammonite Crab drops Dragon spear with rarity 1/699,050.67 in quantity 1Dragon spear11/699,050.67; 1/41,600[d 2][d 4]37,13737,440
  1. ^ The "nothing" drop is removed while wearing a ring of wealth.
  2. ^ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 The drop rate is increased while wearing a ring of wealth due to the "nothing" drop being removed.
  3. ^ 3.0 3.1 The talisman dropped depends on where the monster is located: monsters above ground level drop the nature talisman, and monsters below ground level drop the chaos talisman.
  4. ^ 4.0 4.1 4.2 Only dropped if Legends' Quest has been finished; if not, a talisman is dropped instead.

Tertiary[edit | edit source]

Item Quantity Rarity Price High Alch
Clue scroll (easy).png: Ammonite Crab drops Clue scroll (easy) with rarity 1/128 in quantity 1Clue scroll (easy)11/128[d 1]Not sold12
Numulite.png: Ammonite Crab drops Numulite with rarity 27/175 in quantity 5-14Numulite5–1427/175140–392150–420
Unidentified small fossil.png: Ammonite Crab drops Unidentified small fossil with rarity 3/350 in quantity 1Unidentified small fossil13/350Not sold60
Unidentified medium fossil.png: Ammonite Crab drops Unidentified medium fossil with rarity 3/700 in quantity 1Unidentified medium fossil13/700Not sold120
Unidentified large fossil.png: Ammonite Crab drops Unidentified large fossil with rarity 3/875 in quantity 1Unidentified large fossil13/875Not sold180
Unidentified rare fossil.png: Ammonite Crab drops Unidentified rare fossil with rarity 3/3,500 in quantity 1Unidentified rare fossil13/3,500Not sold750
  1. ^ The easy clue scroll drop rate increases to 1/121 with the completion of the easy combat achievements.

Changes[edit | edit source]

Date Changes
12 July 2018
(update | poll)

Ammonite Crabs now drop a maximum of 2 seaweed spores instead of 1.

Trivia[edit | edit source]