Release date Unknown edit
Members Yes
Level 88
Spellbook Ancient
Type Skilling
Experience 95
Runes 6Soul rune6Chaos rune6Fire rune6Water rune
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 the player 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 800-940k exp/hour (Yaktwee Stick required. Using an Arctic bear, Tracker aura and/or Level boosting items, such as God banners can increase exp/hour.)

Fishing: Fly-fishing, Salmon and Trout with Crystallise and Light Form is 140k exp/hour (Fishermans gear required. Using Fishing Urns, Granite Lobster, Call of the Sea aura and/or Level boosting items, such as God banners can increase exp/hour.)

Mining: Granite mining at the southern Kharidian desert mine, with Crystallise and Light form is 270k exp/hour (Golden mining suit required. Using Mining Urns, Lava titan, Quarrymaster aura and/or Level boosting items, such as God banners can increase exp/hour.)

Thieving: Dwarf traders with Crystal Mask and Light Form is 670-780k exp/hour (Requires; Ardougne cloak 4, Trahearn Exoskeleton, Fiver-finger discount aura. Using Level boosting items, such as God banners or Abyssal Lurkers/Magpie familiar scroll specials can increase exp/hour.)

Firemaking: Curly roots with Superheat Form is 670k+ exp/hour. (Using Ring of Fire and Flame gloves and Reborn Phoenix familiar can increase exp/hour.)

Woodcutting: Teak trees with Crystallise and Light Form is 220-235k exp/hour. (Using Lumberjack aura, Lumberjack outfit, Woodcutting urns and Beaver familiar.)

6Water rune6Fire rune6Chaos rune6Soul rune5,748
Combo runes
6Fire rune6Chaos rune6Soul rune6Mud rune10,908
6Water rune6Chaos rune6Soul rune6Lava rune9,852
6Water rune6Chaos rune6Soul rune6Smoke rune10,284
6Chaos rune6Soul rune6Steam rune9,774
6Fire rune6Chaos rune6Soul rune6Mist rune11,634
6Fire rune6Chaos rune6Soul runeStaff of water5,634
6Fire rune6Chaos rune6Soul runeMud battlestaff5,634
6Water rune6Chaos rune6Soul runeStaff of fire5,196
6Chaos rune6Soul runeSteam battlestaff5,082
6Chaos rune6Soul runeElemental battlestaff5,082
6Chaos rune6Soul runeMystical staff (75)5,082
6Water rune6Chaos rune6Soul runeLava battlestaff5,196
6Fire rune6Chaos rune6Soul runeAvernic wandTome of frost5,634

Unaffected resources

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