Amethyst crystals are the highest level rock in Old School RuneScape, requiring 92 Mining to mine. They are located exclusively in the Mining Guild.
When successfully mined by a player, they receive an amethyst, which yields 240 Mining experience. After being mined, amethyst usually takes around 75 seconds to respawn.
Wearing expert mining gloves while mining an amethyst crystal grants a 25% chance for the crystal to not deplete upon mining an amethyst, allowing you to mine an additional amethyst before depleting.
||75 seconds (1:15)
A gem table rolls before the main drop table. There's a chance to receive nothing here so that players can receive no items from a rock even if they are guaranteed to receive an ore in the main drop table. The table gets more likely to be rolled if the player has a glory amulet equipped: the probability grows from 1/256 to 1/86.
|Nothing||N/A||70/32,768; 70/11,008[d 1]||N/A||N/A|
|Uncut sapphire||1||32/32,768; 32/11,008[d 1]||385||15|
|Uncut emerald||1||16/32,768; 16/11,008[d 1]||631||30|
|Uncut ruby||1||8/32,768; 8/11,008[d 1]||1,271||60|
|Uncut diamond||1||2/32,768; 2/11,008[d 1]||3,073||120|
The probability for a player to receive some amethyst drop depends on the player's mining level.
The following table shows items which can additionally be received upon a successful resource roll. Also, the crystals will deplete upon a successful resource roll.
- ↑ Jagex. Mod Ash's Twitter account. 11 February 2020. (Archived from the original on 27 November 2020.) Mod Ash: "It adds a gem roll before each ore roll, and if you receive a gem you don't get the ore roll."
- ↑ Jagex. Mod Ash's Twitter account. 6 July 2020. (Archived from the original on 27 November 2020.) Mod Ash: "Yes, [the mining gem table has] got [...] chance of giving no gem."
- ↑ Jagex. Mod Ash's Twitter account. 7 Feb 2017. (Archived from the original on 18 Jun 2019.) Mod Ash: "[the actual increase when wearing the Amulet of Glory while mining is] 1/86 rather than 1/256 for a gem."