Real Arcanite (K2SO4), probably would be named after a philosopher or Alchemist that will discover it (by Andrew Silver).

HP/inch: 30; Hardness 15; Cost: Weapons or armors fashioned from arcanite are always masterwork items as well; the masterwork cost is included in the prices given below.
type of Arcanite Item Item Cost Modifier


+100 gp

Light armor

+6,000 gp.

Medium armor

+12,000 gp.
Heavy Armor +18,000 gp.
Shield +4,000 gp.
Weapon +5,000 gp.


This grayish metal looks dull even when tempered, but it holds a keener edge than any other metal. An arcanite weapon has a +1 enhancement bonus on damage rolls, and, if it is a slashing or piercing weapon, its threat range expands by 1. This expansion stacks with other abilities that expand a weapon’s threat range, such as the Improved Critical feat, but arcanite always expands the threat range by just 1 point (this point is not doubled due to the Improved Critical feat, for instance).

Arcanite is extremely flexible and can be worked into a springy armor that turns aside the mightiest blows. Whenever a critical hit is scored on the wearer, there is a chance that the critical hit is negated and damage is instead rolled normally. This chance depends on the armor type: light arcanite armor has a 10% chance to negate critical hits, medium armor a 20% chance and heavy armor a 30% chance. An arcanite heavy shield has a 5% chance to negate critical hits, which stacks with the chances provided by wearing arcanite armor. (Arcanite bucklers and light shields provide no special benefit.) This property does not stack with similar effects.

Only weapons, armor and shields normally made of metal can be fashioned from arcanite; a warblade can be made of arcanite, but a tauren totem cannot. Weapons, armor and shields normally made of steel that are made of arcanite have one-quarter more hit points than normal. Arcanite has 30 hit points per inch of thickness and hardness 15.


This item is created by Alchemists which requires the Master Alchemist feat and a Philosopher's Stone.

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