Would appreciate if you went more into detail. I have kminer..
Quest Information
Completing the F2P quest "Rune Mysteries" grant's you access to the runecrafting skill
and along with it, the ability to access and mine rune essence.
Refer to here for a very detailed guide on completing the quest.
http://www.tip.it/runescape/index.php?rs2quest_id=1
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How to mine Rune Essence
Once you've completed said quest, use the information below
on how to mine Rune Essence.
Here is a small picture detailing the bank you should use and the location you must go
to in order to access the rune essence (This is located in the city of Varrock).
I've marked the location of the recommended bank
and access point to get to the essence, both in red.
To get into the location of mining your essence, speak with Aubury.
Or you may right click him and select the teleport option.
Once you've teleported into the rune mysteries, follow one of paths which will lead
you to a big, white, sparkling, essence mound. Swing your pick axe at it until your
inventory is full. To leave the Rune Mysteries to bank your essence, find the
bright yellow portal that will be nearby the rune essence mound. Click it.
Hopefully this helps ya mate,
Cheers.