Ammonite Crab

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Ammonite Crabs can be found on the most coastal areas and the most northern beaches of Fossil Island. They cannot be attacked by dwarf multicannons. They are popular among players for training.

Drops[edit | edit source]

Drop rates estimated based on 1,170,000 kills from the Old School RuneScape Wiki drop log project, unless otherwise cited.

Fossilised currency[edit | edit source]

Item Quantity Rarity Price High Alch
Numulite.png: Ammonite Crab drops Numulite with rarity 29/128 in quantity 4Numulite429/12848120
Numulite.png: Ammonite Crab drops Numulite with rarity 8/128 in quantity 2Numulite28/1282460
Numulite.png: Ammonite Crab drops Numulite with rarity 6/128 in quantity 8Numulite86/12896240

Materials[edit | edit source]

Item Quantity Rarity Price High Alch
Iron ore.png: Ammonite Crab drops Iron ore with rarity 4/128 in quantity 1Iron ore14/1288410
Coal.png: Ammonite Crab drops Coal with rarity 2/128 in quantity 2Coal22/12827654
Copper ore.png: Ammonite Crab drops Copper ore with rarity 2/128 in quantity 3Copper ore32/1281173
Tin ore.png: Ammonite Crab drops Tin ore with rarity 4/128 in quantity 3Tin ore34/128963

Oysters and Seaweed[edit | edit source]

Item Quantity Rarity Price High Alch
Oyster.png: Ammonite Crab drops Oyster with rarity 9/128 in quantity 1Oyster19/12872120
Oyster.png: Ammonite Crab drops Oyster with rarity 12/128 in quantity 2Oyster212/128144240
Seaweed.png: Ammonite Crab drops Seaweed with rarity 4/128 in quantity 1Seaweed14/128501
Seaweed.png: Ammonite Crab drops Seaweed with rarity 4/128 in quantity 2Seaweed24/1281002
Seaweed.png: Ammonite Crab drops Seaweed with rarity 2/128 in quantity 5Seaweed52/1282505
Edible seaweed.png: Ammonite Crab drops Edible seaweed with rarity 2/128 in quantity 2Edible seaweed22/128702
Oyster pearl.png: Ammonite Crab drops Oyster pearl with rarity 1/128 in quantity 1Oyster pearl11/1288067
Empty oyster.png: Ammonite Crab drops Empty oyster with rarity 3/128 in quantity 1Empty oyster13/128Not sold3
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
Iron pickaxe.png: Ammonite Crab drops Iron pickaxe with rarity 5/128 in quantity 1Iron pickaxe15/12810484
Opal bolt tips.png: Ammonite Crab drops Opal bolt tips with rarity 2/128 in quantity 5Opal bolt tips52/1284020
Fishing bait.png: Ammonite Crab drops Fishing bait with rarity 2/128 in quantity 10Fishing bait102/1285010
Calcite.png: Ammonite Crab drops Calcite with rarity 1/128 in quantity 1Calcite11/128[d 1]3218
Pyrophosphite.png: Ammonite Crab drops Pyrophosphite with rarity 1/128 in quantity 1Pyrophosphite11/128[d 1]6418
Seaweed spore.png: Ammonite Crab drops Seaweed spore with rarity 1/128 in quantity 2Seaweed spore21/1281,08024
Volcanic ash.png: Ammonite Crab drops Volcanic ash with rarity 6/128 in quantity 1Volcanic ash16/12869120
Casket.png: Ammonite Crab drops Casket with rarity 1/128 in quantity 1Casket11/12881930
  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
Uncut sapphire.png: Ammonite Crab drops Uncut sapphire with rarity 1/512 in quantity 1Uncut sapphire11/512; 1/260[d 1]65015
Uncut emerald.png: Ammonite Crab drops Uncut emerald with rarity 1/1,024 in quantity 1Uncut emerald11/1,024; 1/520[d 1]81530
Uncut ruby.png: Ammonite Crab drops Uncut ruby with rarity 1/2,048 in quantity 1Uncut ruby11/2,048; 1/1,040[d 1]1,48660
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 1]7042
Uncut diamond.png: Ammonite Crab drops Uncut diamond with rarity 1/8,192 in quantity 1Uncut diamond11/8,192; 1/4,160[d 1]3,054120
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 1]13,12060
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 1]11,88260
Rune javelin.png: Ammonite Crab drops Rune javelin with rarity 1/16,384 in quantity 1Rune javelin11/16,384; 1/8,320[d 1]167240
Rune spear.png: Ammonite Crab drops Rune spear with rarity 1/262,144 in quantity 1Rune spear11/262,144; 1/15,600[d 1][d 2]12,01512,480
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 1][d 2]65,70166,000
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 1][d 2]37,30337,440
  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 The drop rate of this item is increased when wearing a Ring of wealth.
  2. 2.0 2.1 2.2 The Rune spear, Shield left half and Dragon spear will only be dropped if Legend's Quest has been started, or else a talisman will be dropped as a replacement.

Tertiary[edit | edit source]

Item Quantity Rarity Price High Alch
Clue scroll (easy).png: Ammonite Crab drops Clue scroll (easy) with rarity Rare in quantity 1Clue scroll (easy)1RareNot sold12
Numulite.png: Ammonite Crab drops Numulite with rarity 27/175 in quantity 5-14Numulite5–1427/17560-168150-420
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

Changes[edit | edit source]

Date Changes
12 July 2018
(update | poll)
The drop of seaweed spores was increased from 1 to 2.

Trivia[edit | edit source]