Gem rock

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NormalTai Bwo Wannai
Rocks
Gem rock.png
Released27 January 2003 (Update)
MembersYes
QuestShilo Village
LocationShilo Village, Lunar Isle Mine
ExamineA rocky outcrop.
Advanced data
Object ID11380, 11381

Gem rocks can be mined through the Mining skill. A Mining level of 40 is required to mine gem rocks, granting 65 Mining experience per gem.

Normal gem rocks can be mined in Shilo Village after a player has completed the Shilo Village quest or in the Lunar Isle mine after Lunar Diplomacy. The rocks regenerate 99 ticks (59.4 seconds) after being mined. Wearing a charged amulet of glory triples the success rate of mining these gem rocks.[1] There is also another kind of gem rock which randomly appears during the Tai Bwo Wannai Cleanup minigame with a 5% chance per event.[2] These rocks can be mined three times before they despawn.

The Shilo Village mine in the north-west part of the village has two sections: overground and underground. The underground section is only available for players who have completed hard Karamja Diary, and it includes significantly more gem rocks than on the surface as well as a Bank Deposit Chest. For those who can only access the gem rocks on the surface, using a gem bag can extend trips.

Mining enhancers do not work on Gem Rocks.

Mining Info[edit | edit source]

Gem Rock
Level requiredMining 40
Mining XP65 xp
Required toolPickaxe
Respawn time59.4 seconds (Normal), N/A (TBW)

Gem rates[edit | edit source]

When a gem rock is mined, one of the following gems is produced:

Item Quantity Rarity Price High Alch
Uncut opal.png: Gem rock drops Uncut opal with rarity 60/128 in quantity 1Uncut opal160/12842112
Uncut jade.png: Gem rock drops Uncut jade with rarity 30/128 in quantity 1Uncut jade130/12815418
Uncut red topaz.png: Gem rock drops Uncut red topaz with rarity 15/128 in quantity 1Uncut red topaz115/1281,86524
Uncut sapphire.png: Gem rock drops Uncut sapphire with rarity 9/128 in quantity 1Uncut sapphire19/12836315
Uncut emerald.png: Gem rock drops Uncut emerald with rarity 5/128 in quantity 1Uncut emerald15/12855330
Uncut ruby.png: Gem rock drops Uncut ruby with rarity 5/128 in quantity 1Uncut ruby15/1281,19760
Uncut diamond.png: Gem rock drops Uncut diamond with rarity 4/128 in quantity 1Uncut diamond14/1282,844120

Taking this into consideration, mining a gem rock is worth 634.75 on average.

The probability for a player to receive a gem drop is shown for varying levels in the figure below. The rock will deplete after receiving the gem. Mining gloves and its variants do not affect gem rock depletion. Wearing a charged amulet of glory will significantly increase the chance of mining the rock.

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Locations[edit | edit source]

LocationRocksMembers
Lunar Isle mine4Members
Shilo Village mine (underground)48Members
Shilo Village mine (surface)7Members

Trivia[edit | edit source]

  • When a gem rock is mined, the experience lamp sound will play. This is also the same sound as when a gem is mined from a normal ore rock.
  • Gem rocks do not access the gem pre-roll table that provides gems from normal ore rocks.

References[edit | edit source]

  1. ^ Jagex. Mod Ash's Twitter account. 12 November 2020. (Archived from the original on 12 November 2020.) Mod Ash: "You'd be 3x more likely to pass the mining roll at those rocks if you had a charged glory amulet."
  2. ^ Jagex. Mod Ash's Twitter account. 15 April 2016. (Archived from the original on 29 May 2020.) Mod Ash: "Nope, those are 5%."