Pure essence is a raw material used in the Runecraft skill to make members only runes. They can create the same runes as rune essence as well as cosmic, chaos, astral, nature, law, death, wrath and any combination runes. Pure essence does not provide any bonus over rune essence when crafting runes lower than cosmic runes; therefore, when crafting lower-tier runes, it is recommended to use whichever essence is less expensive at the time.
Rune essence, RuneScape Wiki
Rune Essence mine, RuneScape Wiki
Dense essence block - OSRS Wiki
The Abyss - Runescape Wiki - Neoseeker
Air rune, Old School RuneScape Wiki
Rune essence mine, Old School RuneScape Wiki
I Mined Rune Essence For Money
Pay-to-play Runecrafting training, Old School RuneScape Wiki
Scar Essence Mine & More : r/2007scape
