Pure essence - OSRS Wiki

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.

Ancient essence - OSRS Wiki

Mining pure essence, Old School RuneScape Wiki

OSRS Daeyalt Essence Guide (Runecrafting Guide add on)

Runecrafting pouches, RuneScape Wiki

How to Mine Rune Essence: 7 Steps (with Pictures) - wikiHow

How to Mine Rune Essence: 7 Steps (with Pictures) - wikiHow

Pay-to-play Runecrafting training, Old School RuneScape Wiki

70-77 Runecrafting @ ZMI ~50,600 Pure Essence 36-38k xp/hr (70-75) 43-45k xp/hr (75-77) : r/2007scape

Mud rune, Old School RuneScape Wiki

Tainted essence chunk - OSRS Wiki

Pure essence - The RuneScape Wiki

Blood rune - OSRS Wiki

Scar Essence Mine & More : r/2007scape