Draconic Materials

*Draconic materials are notoriously difficult to work with. Any check made to harvest a draconic material or craft an item from it takes a -10 penalty unless the creature making the check has the Dragoncrafter feat.
*While openly using one or more items crafted from a draconic material, a creature gets a -5 circumstance penalty to Diplomacy checks and a +2 circumstance bonus to Intimidate checks made against Draconic creatures.
*Type Metal or wood; HP/Inch 40; Hardness 20; Weight 3/4 normal
The bones of a dragon are fantastically durable and lightweight, being comparably hard to adamantium.
Dragonbone weapons are deadly instruments, ignoring 10 hardness of any object they strike, counting as adamantium for the purposes of overcoming DR, and increasing the weapon's critical range by 1. This increase in critical range applies after any effect that multiplies a weapon's critical range. If a dragonbone weapon has the heavy quality, its required Strength score is reduced by 1.
Dragonbone armor provides DR/adamantium or cold iron 2, 3, and 5 for light, medium, and heavy armor respectively. The arcane spell failure chance for a suit of dragonbone armor is reduced by 5%, its maximum Dexterity bonus increases by +1, and its armor check penalty is reduced by -1 (minimum 0).
*Type Leather; HP/Inch 30 Hardness 15; Weight Normal
The soft, supple hide of a dragon's belly, and the area between its scales, dragonhide is deceptively difficult to pierce. Even when tanned for use in armor, dragonhide remains comfortably flexible. The arcane spell failure chance for a suit of dragonhide armor is reduced by 5%, its maximum Dexterity bonus is increased by +1, and its armor check penalty is reduced by -1 (minimum 0).
Dragonhide armor also carries with it some of the elemental properties of a dragon, being immune to the energies associated with the dracotype it was harvested from. It confers some of this protection of the wearer, granting them energy resistance 5 against those energies. If the dracotype was associated with only one energy, it instead grants energy resistance 10 against that energy. Energy resistance from dragonhide armor stacks with the wearer's next highest source of energy resistance.
*Type Metal; HP/Inch 40; Hardness 20; Weight Normal
The solid, heavy plates of a dragon's scales make up a large portion of its weight, guarding vulnerable areas such as the neck, head, and chest. Dragonscale is typically used only to create armor, as it provides no benefit beyond being a particularly durable material. Dragonscale armor provides the DR of dragonbone and the energy resistance of dragonhide.