RuneScape Wiki
RuneScape Wiki
Release date Unknown edit
Members Yes
Level 88
Spellbook Ancient
Type Skilling
Experience 95
Runes 6Soul6Chaos6Fire6Water
Quest The Light Within

Crystallise is a Seren spell unlocked by The Light Within. It is a skilling spell that locks a skilling node to increase experience gain by 50% at the cost of preventing resource yield. This can be further increased to 87.5% by activating the Light Form prayer, and the bonus does stack with bonus experience and experience-boosting equipment. It can be used with Mining, Woodcutting, and Fishing spots, or full Hunter box traps.

The crystallised resource will last 30 seconds from the time the spell is cast, not from when you engage with the resource. This means that the spell will wear off whether you engage with the resource in those 30 seconds or not. If another player is using the same resource node, it will deplete as normal, but the Crystallise spell's effect and timer will "pause" until the node refills. If a Fishing spot moves, the spell will move with it.

Once the spell has worn off you will collect one of the resource as you would if you had not cast the spell. Common uses for Crystallise include mining granite, fly fishing, and hunting grenwalls.

Highest experience rates when using Seren spells

Hunter: Hunting grenwalls with Light Form and Crystallise is around 800,000-940,000 experience per hour. This requires the Enhanced Yaktwee stick, the Arctic bear familiar, any of the Tracker auras and/or level boosting items, e.g. God banner which increases the amount of experience per hour.

Grenwalls can be crystallised in two locations, these locations are:

Fishing: Fly-fishing salmon and trout with Crystallise and Light Form is around 140,000 experience per hour. This requires Fishing outfit, Fishing urns, the granite lobster familiar, any of the Call of the sea auras and/or level boosting items, e.g. God banner which increases the amount of experience per hour.

Locations where players can catch salmon and trout:

Mining: Granite mining at the southern Kharidian desert mine, with Crystallise and Light form is around 270,000 experience per hour. This requires the Golden mining suit, Mining urns, the Lava titan familiar, any of the Quarrymaster auras and/or level boosting items, e.g. God banner which increases the amount of experience per hour.

Granite is a rock that can only be mined from granite rocks at the Western desert mining site south of the Bandit Camp in the Kharidian Desert.

Woodcutting: Teak trees with Crystallise and Light Form is around 220,000-235,000 experience per hour. This requires any of the Lumberjack auras, the Lumberjack clothing, Woodcutting urns and the Beaver familiar.

Teak Trees can be found:

Spell cost

6Water rune.png6Fire rune.png6Chaos rune.png6Soul rune.png10,086
Combo runes
6Fire rune.png6Chaos rune.png6Soul rune.png6Mud rune.png15,144
6Water rune.png6Chaos rune.png6Soul rune.png6Lava rune.png14,928
6Water rune.png6Chaos rune.png6Soul rune.png6Smoke rune.png15,198
6Chaos rune.png6Soul rune.png6Steam rune.png14,976
6Fire rune.png6Chaos rune.png6Soul rune.png6Mist rune.png16,914
6Fire rune.png6Chaos rune.png6Soul rune.pngStaff of water.png9,936
6Fire rune.png6Chaos rune.png6Soul rune.pngMud battlestaff.png9,936
6Water rune.png6Chaos rune.png6Soul rune.pngStaff of fire.png9,132
6Chaos rune.png6Soul rune.pngSteam battlestaff.png8,982
6Chaos rune.png6Soul rune.pngElemental battlestaff.png8,982
6Chaos rune.png6Soul rune.pngMystical staff (75).png8,982
6Water rune.png6Chaos rune.png6Soul rune.pngLava battlestaff.png9,132
6Fire rune.png6Chaos rune.png6Soul rune.pngAvernic wand.pngTome of frost.png9,936

Unaffected resources