Cost: 1.5 x
Weight: x .15
AC: nil
Magic: +2
Attack: nil
Damage: +1*
Init: Normal

This black stone is primarily found where Minotaurs rule. This rock is jet black, so black that it doesn't take light very well, you can't cast any kind of light spell on this rock type.
If you handle this rock well and work it into a weapon, you will get a weapon that is immune to acid and corrosion. The weapon is also slightly heavier that a weapon of same type and size made in metal (15%). These heavy weapons also gives a bit more damage, any Bludgeoning and Slashing weapons does +1 damage, while Piercing weapon does not gain by this increase in weight.
The Iron Rock is also very difficult to to work and it takes 2.5 times longer to work than metal does.