RuneScape Classic Wiki
RuneScape Classic Wiki
The main RuneScape Wiki has an article on: Gem rock
The Old School RuneScape Wiki also has an article on Gem rock.

Gem rocks are a type of scenery which can be mined for a random uncut gem. They are found only in northwest Shilo Village. Each gem mined yields 50 Mining experience. Mining these rocks requires level 40 Mining and completion of the Shilo Village quest. Gem rocks have a respawn time of around 2 minutes.


Image Gem Chance* Chance (amulet)**
Uncut Opal.png Uncut opal ~46.86%
Uncut Jade.png Uncut jade ~23.26%
Uncut Red Topaz.png Uncut red topaz ~11.76%
Uncut sapphire.png Uncut sapphire ~7.14%
Uncut emerald.png Uncut emerald ~3.94%
Uncut ruby.png Uncut ruby ~3.89%
Uncut diamond.png Uncut diamond ~3.15%

* No available sampling
** Based on a sampling of 145,701 gems

Unstrung Longbow.png This section or article is incomplete and could do with improvement.
Reason: Gem chances w/o the amulet.
You can discuss this issue on the talk page or edit this page to improve it.