Custom Gear Value

[Gilespee]

Our DM handed out some homebrew magic weapons to each player a few sessions ago. In the last session we received more gifts and I'm now in a position to sell the homebrew magic sword.

Details of the item:
+1 scimitar
Fire resist 3 whilst held
Once per day, shoot a 3D6 damage cyclone as a ranged touch attack up to 25 feet.

I've looked over the weapon properties available under Craft Magic arms and Armour and I can see that the fire resist and cyclone attack are not listed, nor can I see anything similar.

My Question: how would you price such an item?

My gut feeling is that this would be equivalent to a +4 weapon - the fire resist feels more like a +2 property than a +1, however I would be very grateful for the community input on this one as we're not the most experienced Pathfinder players.

[JohnHawkins]

1) Ask your GM what it is worth.

2) The Fire resistance is very weak largely negligible certainly not a +2 quality. The nearest is Fire resistance 10 for armour at +18000, on that basis I rate fire resistance 3 at 3000 maybe 4000 if I am being generous
The energy blast seems comparable to casting a 1st level spell once a day at caster level 3 ( a bit weaker than the standard spells earpiercing scream and Snowball) which is 1800*3*1/5 = 1080gp

So I think the sword is worth about 2315(+ 1 scimitar) +4080 about 6395 so you could get about 3200gp for it , although I think that overvalues a few very minor abilities and probably if I had an item like that in my campaign I would price it at 4000gp max and sell at 2000gp

[Gilespee]

Thanks for the concise response. :)