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Gem rocks

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Classic Runestone
Gem rocks
Gem Rock
Release date 27 January 2003 (Update)
Members? Yes
Quest? No
Level 40
Experience 65
Ore Gems
Max output 1
Location Shilo Village, Lunar Isle mine, Al Kharid mining site resource dungeon, Prifddinas
Examine
This rock contains gems.
[view][talk]

Gem rocks are a unique type of rock that yield gems, rather than ore, when mined. They give 65 Mining experience per rock, regardless of what gem is mined. 40 mining is required to mine these rocks. The Gem Rock takes about a minute and twenty five seconds to restore, though the rate changes depending on how many players are connected to the server. The chance of mining an additional ore while wearing Varrock armour does not apply to gem rocks.

There are several locations where these can be found:

There are also a number of Kal'Gerion gem rock in the Kal'gerion dungeon.

The types of gems that can be mined are:

The gem received is random - rocks are not bound to specific gems, except for the rocks found during The Tale of the Muspah. It is rare to receive more expensive gems such as rubies and diamonds. Gems are mined at a faster rate while wearing a charged amulet of glory and ring of wealth. Wearing a ring of wealth also gives a small chance to get two gems from one rock (a message will appear when this occurs).

A popular technique when mining these rocks is to bring a chisel and cut and fletch the gems into bolt tips, thus reducing the need to bank. Another popular technique is to drop the less valuable gems such as jades and opals to maximise the amount of money made.

The gem rocks can be used with the gem bag reward from Dungeoneering for minimal banking by fletching the cheaper gems to bolt tips and saving the more expensive gems.

LocationsEdit

Shilo VillageEdit

After completing the Shilo Village quest, access to the gem rocks is obtained. Additionally, the Underground Gem Mine can be accessed after completing hard tasks of Karamja Diary.

Based on a sample of 2084 consecutively mined gems at Shilo Village with a rune pickaxe and amulet of glory, the chance of mining each type of gem is as follows:

Gem Type Approx. chance of mining Current GE Value
Uncut opal 46.4% Coins 100 177
Uncut jade 21.9% Coins 250 353
Uncut red topaz 12.7% Coins 250 705
Uncut sapphire 7% Coins 1000 1,282
Uncut emerald 4.1% Coins 1000 2,561
Uncut ruby 3.7% Coins 1000 3,027
Uncut diamond 3.5% Coins 1000 5,572

Based on the above table, this means on average the player will earn 750.73 coins per rock mined, or an average of 27.69 Crafting experience and 4.8429 Fletching experience should the player decide to create bolt tips, assuming no gems are accidentally crushed.

Lunar mineEdit

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After completing Lunar Diplomacy, access to gem rocks within the Lunar Mine is gained.

Al KharidEdit

The Al Kharid mining site resource dungeon requires a Dungeoneering level of 75 to access. There is little competition due to the high requirement. Seven gem rocks are here as well as lower level implings that can be caught while waiting for rocks to respawn.

Based on a sample of 501 consecutively mined gems at the Al Kharid Resource Dungeon with a rune pickaxe, the chance of mining each type of gem is as follows:

Gem Type Approx. chance of mining Current GE Value
Uncut opal 51.1% Coins 100 177
Uncut jade 24.6% Coins 250 353
Uncut red topaz 9.6% Coins 250 705
Uncut sapphire 5.8% Coins 1000 1,282
Uncut emerald 4.2% Coins 1000 2,561
Uncut ruby 2.8% Coins 1000 3,027
Uncut diamond 2.0% Coins 1000 5,572

Based on the above table, this means on average the player will earn Coins 250 623.08 per rock mined, or an average of 25.25 Crafting experience and 2.5513 Fletching experience should the player decide to create bolt tips, assuming no gems are accidentally crushed.

PrifddinasEdit

The 8 Prifddinas gem rocks, found within the Trahaearn section, yield different gems than other gem rocks found in RuneScape. Unlike the other rocks, they do not contain uncut opal, jade and red topaz, but instead offer uncut gems up to onyx and spirit gems up to dragonstone.

Based on a sample of 1,771 mined gems at the Prifddinas Gem Rocks with a rune pickaxe, the chance of mining each type of gem is as follows:

Gem Type

Approx. chance of mining

Current GE Value

Uncut sapphire 48.62% Coins 1000 1,282
Uncut emerald 27.56% Coins 1000 2,561
Uncut ruby 9.49% Coins 1000 3,027
Uncut diamond 3.73% Coins 1000 5,572
Uncut onyx 0.01%>[1] Coins 1000 1,087,211
Spirit sapphire 5.76% N/A
Spirit emerald 3.44% N/A
Spirit ruby 1.02% N/A
Spirit diamond 0.4% N/A
Spirit dragonstone 0.01%>[1] N/A
  1. ^ a b In the mined sample, no gems of this type were found.

In a sample of 1000 rocks with a dragon pickaxe at Level 88; the following number of gems were mined:

Sapphire: 476; Emerald: 275; Ruby: 83; Diamond: 38; Onyx: 3 (0.3%)

Spirit Gems; Sapphire: 70; Emerald: 39; Ruby: 11; Diamond: 4; Dragonstone: 1 (0.1%)

Tai Bwo Wannai Cleanup minigameEdit

Cleanup gem rock

A gem rock in the Tai Bwo Wannai Cleanup minigame.

Gem rocks can be found randomly while hacking jungle in the Tai Bwo Wannai Cleanup minigame. When a player discovers one, a message will appear saying: "The jungle parts to reveal a gem-rich rock". These rocks have gems encrusted on the surface, which disappear as the player mines it. The rock may be mined three times before disappearing. The colours of these gems are not an indication of which gems the player will actually mine.

Ice CaveEdit

During The Tale of the Muspah there are gem rocks that contain only sapphires, no experience is gained from these rocks and they cannot be mined again.

TriviaEdit

  • When the gem rock is mined, the xp lamp sound will play.
  • One of the Prifddinas gem rocks displays a yellow gem, despite there being no mineable yellow gems in game.
  • In the first week of release, gem rocks in Prifddinas gave a high percentage of summoning gems and uncut onyx.

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