durability and unusual materials

[eliakon]

So, a number of creatures have specialized vulnerabilities. But the item in question (say, salt for fairies) is not suitable for making a weapon out of.

Could and alchemist get around this by turning a sword carved out of a salt crystal indestructible?

In a similar vein, arrows are disposable. And some weakness items do a set amount of damage...
...which is more than arrows, would you add this or replace this if you tipped an arrow with the substance.

And lastly, what about something like a pistol crossbow, which has a set damage of 1-4, would weakness effects allow this to be a viable weapon?

[kiralon]

1. Salty sword of Indestructability goes with the Pepper armour of regeneration.
If you can convince someone to do it for you sure, but the purple jelly Hercules club of indestructibility does no damage.

2. If you make the arrowhead out of this material I add the damage, or if not extra damage make it aggravated so they take longer to heal (1hp per day, magic healing only gives 1hp per 10 actually rolled/healed).

3. Certainly, weakness items usually also cause a lot of pain as well so you can give them negatives because even though the damage is small it can feel like you filled the wound full of salt and explosions.
Also make pistol crossbow damage open ended, so and max dice rolls for damage are rerolled. Tends to make the pc's worry about them more.

my added question

So what happens if you coat your full plate in white iron?
Does it get damage resistance 20/-

[dreicunan]

1. Salty sword of Indestructability goes with the Pepper armour of regeneration.
If you can convince someone to do it for you sure, but the purple jelly Hercules club of indestructibility does no damage.

2. If you make the arrowhead out of this material I add the damage, or if not extra damage make it aggravated so they take longer to heal (1hp per day, magic healing only gives 1hp per 10 actually rolled/healed).

3. Certainly, weakness items usually also cause a lot of pain as well so you can give them negatives because even though the damage is small it can feel like you filled the wound full of salt and explosions.
Also make pistol crossbow damage open ended, so and max dice rolls for damage are rerolled. Tends to make the pc's worry about them more.

my added question

So what happens if you coat your full plate in white iron?
Does it get damage resistance 20/-

Nope, only the plating would have it, not the armor underneath. Only would be worth doing if you wanted to make your armor non-conductive.

[kiralon]

Hmm, but it does show damage resistance is in palladium, I wonder if there are any other materials that give damage resistance.