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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 (50 at the Kal'gerion dungeon)
Experience 65 (75 at the Kal'gerion dungeon)
Ore Gems
Max output 1
Location Shilo Village, Lunar Isle, Al Kharid, Prifddinas, Daemonheim
Examine
This rock contains gems.
[view][talk]

Gem rocks are a unique type of rock that yield gems, rather than ore, when mined. 40 Mining is required to mine these rocks. Gem rocks take about a minute and twenty five seconds to respawn, 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.

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. The gem rocks can also be used with the gem bag reward from Dungeoneering.

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 GE price
Uncut opal 46.4% 177
Uncut jade 21.9% 307
Uncut red topaz 12.7% 509
Uncut sapphire 7% 861
Uncut emerald 4.1% 1,454
Uncut ruby 3.7% 2,381
Uncut diamond 3.5% 3,929

Based on the above table, this means on average the player will earn 559.5 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 IsleEdit

After completing Lunar Diplomacy, players gain access to three gem rocks within the Lunar Isle mine.

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 GE price
Uncut opal 51.1% 177
Uncut jade 24.6% 307
Uncut red topaz 9.6% 509
Uncut sapphire 5.8% 861
Uncut emerald 4.2% 1,454
Uncut ruby 2.8% 2,381
Uncut diamond 2.0% 3,929

Based on the above table, this means on average the player will earn 471.09 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 11,771 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 GE price
Uncut sapphire 48.42% 861
Uncut emerald 28.27% 1,454
Uncut ruby 8.97% 2,381
Uncut diamond 3.79% 3,929
Uncut onyx 0.08% 1,077,340
Spirit sapphire 5.78% N/A
Spirit emerald 2.93% N/A
Spirit ruby 1.24% N/A
Spirit diamond 0.39% N/A
Spirit dragonstone 0.11% N/A

DaemonheimEdit

The Kal'gerion dungeon requires a Dungeoneering level of 90 to access. It contains ten Kal'gerion gem rocks, which give slightly more experience than regular gem rocks, and are the only rocks to contain uncut dragonstone.

Based on a sample of 1,000 consecutively mined gems at the Kal'gerion dungeon without a charged amulet of glory, the chance of mining each type of gem is as follows:

Gem type Approx. chance GE price
Uncut opal 28.9% 177
Uncut jade 21.8% 307
Uncut red topaz 9.9% 509
Uncut sapphire 16.2% 861
Uncut emerald 12.6% 1,454
Uncut ruby 5.4% 2,381
Uncut diamond 3.3% 3,929
Uncut dragonstone 1.9% 12,702

Tai Bwo Wannai CleanupEdit

Cleanup gem rock

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.

The Tale of the MuspahEdit

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 a 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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