Analysis, Discussion and Tips for Success

General Discussion

During the quest Kennith's Concerns, you delve deep under the town of Witchaven, and discover the rare ore called rubium. After the quest this can be used as a secondary ingredient, with guam, to make super fishing explosive, which acts like regular fishing explosive in luring mogres to their doom, but also does 150 LP of damage to them.

I'm sure that some developer at Jagex thought this would be a great new feature, but it isn't, for any number of reasons. First, nobody cares about mogres, so a slightly better way of killing them is a yawn. Second, getting to the rubium veins is slow and annoying. Third, mining rubium is also slow and annoying, and also provides poor Mining XP. And if all that isn't enough, both rubium and super fishing explosive are untradeable, so if you want to make these items you have to get the ore yourself and use the results yourself as well.

If after reading this you still want to try your hand at it, I'll tell you the best way to go about making super fishing explosive here.

Note that the slowness with rubium is getting there; the mining itself is quick for each ore, and doesn't change much as Mining level increases. The biggest impact of level here is that higher levels can use better beasts of burden, which helps as you'll see below.

I have assigned super fishing explosive the value 60 gp, the same as regular fishing explosive.

Location and Access

You will combine mining and making potions at the rubium veins under Witchaven with some potion-making at any bank; as usual, I like Castle Wars.

Required and Recommended Equipment

You need a pickaxe to mine the rubium.

Required and Recommended Supplies

You need the input items shown and a ring of duelling and Ardougne teleport tablets for traveling.

Familiar Suggestions

Taking with partially completed potions lets you reduce the number of trips you make to the mine, which speeds up the process. Use a bull ant or spirit terrorbird at lower levels, and a pack yak when you are able to summon one. Don't use a war tortoise as its small benefit over a spirit terrorbird doesn't justify the high pouch cost.

Technique and Tips

Start off at any bank by making a bunch of unfinished guam potions, by adding guam to water vials 14 at a time. Once you have a bunch, summon your beast of burden and load it up with unfinished pots. Take out two laws and two waters and 26 more unfinished potions, and teleport to Ardougne.

Run east out of town and turn south immediately, and you'll get to the entrance to the Witchaven dungeon. Enter, then take the various entrances, Agility shortcuts, doors and tunnels until you get to the rubium areas (if you forget how to get there, consult a quest guide for Kennith's Concerns). Proceed until you get to the last rubium room, which is just before the room where the villagers are. This room has six rubium veins on the north and east walls.

Mine two rubium ore and combine them with two of the unfinished potions; since fishing explosive stacks, this will free up inventory space. Repeat until you've mined all six ore and have six fishing explosives done. Now exit the room to the east and then go back through it again; the rubium will have magically respawned. Continue mining and making explosive, taking additional unfinished pots from your familiar when you have space. When you've made all of the unfinished potions into fishing explosive, mine 27 more rubium ore, then teleport back to Castle Wars and use those to make 27 more explosive.