Gem rock

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Gem rocks can be mined through the Mining skill in Shilo Village after a player has completed the Shilo Village quest or in the Lunar Isle mine after Lunar Diplomacy. A Mining level of 40 is required to mine gem rocks, granting 65 Mining experience per gem. The rocks regenerate 100 seconds after being mined. Wearing a charged amulet of glory increases the speed at which gem rocks are mined by approximately 200%.

There is also another kind of gem rock, which appears during the Tai Bwo Wannai Cleanup minigame at a rate of 1/20.[1]

A gem rock uncovered under some jungle in Tai Bwo Wannai.

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.

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 opal160/12813512
Uncut jade.png: Gem rock drops Uncut jade with rarity 30/128 in quantity 1Uncut jade130/12817418
Uncut red topaz.png: Gem rock drops Uncut red topaz with rarity 15/128 in quantity 1Uncut red topaz115/1284,04724
Uncut sapphire.png: Gem rock drops Uncut sapphire with rarity 9/128 in quantity 1Uncut sapphire19/12846615
Uncut emerald.png: Gem rock drops Uncut emerald with rarity 5/128 in quantity 1Uncut emerald15/12874030
Uncut ruby.png: Gem rock drops Uncut ruby with rarity 5/128 in quantity 1Uncut ruby15/1281,34360
Uncut diamond.png: Gem rock drops Uncut diamond with rarity 4/128 in quantity 1Uncut diamond14/1282,686120


Taking this into consideration, mining a gem rock is worth 776 on average.

Locations[edit | edit source]

LocationRocksMembers
Lunar Isle mine4
Shilo Village mine7
48

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.

References[edit | edit source]

  1. Jagex. Mod Ash's Twitter account. 15 April 2016. Mod Ash: "Nope, those are 5%."