Metal is rare on Athas, and many weapons ordinarily crafted using metal components are extremely expensive.
Unworked iron is worth 100 Cp per pound on average, but can cost much, much more in some places. Worked
metal is even more expensive, as craftsmen who actually know how to craft metal items are rare at best Most metal weapons are items dating back to the Green Age, or have been crafted from the meager resources of Tyr’s iron mines.
Due to the rarity of metal, weapons and other items constructed primarily from metal are priced at their PHB listed cost in gp – they are not converted to Cp. For example a metal longsword costs 15 gp (or 1,500
Cp).Weapons and items containing only small quantities of metal are priced at half their Player’s Handbook listed cost in gp. Divide the listed Player’s Handbook price by 2.
For example, 20 metal-tip arrows cost 50 Cp. Due to the extremely high cost of metal weaponry, most weapons from the Player’s Handbook are
constructed from inferior, but functional, materials instead on Athas. Most common are bone and stone such as flint or obsidian, but treated wood is sometimes used as well. Weapons constructed from inferior materials, such as bone longsword or an axe with a head made from stone, suffer a -1 penalty to attack and damage rolls. This penalty cannot reduce damage dealt below 1.
These weapons cost 0.5% of the listed price in the Player’s Handbook. Convert the listed Player’s Handbook price to Cp, then divide the cost by 2. For example a bone shortsword costs 5 Cp. The following weapons from the Player’s Handbook can be constructed from non-metal materials without penalty: Bolas, all bows (and arrows), club, all crossbows (and bolts), dart, dagger, greatclub, javelin, all lances, all maces, net, nunchaku, quarterstaff, sai, sap, sling (and bullets), all spears.
They weigh the same as listed in the Player’s Handbook. These weapons cost 1% of the listed price in the Player’s Handbook. Simply convert the
listed price in the Player’s Handbook to Cp. For example, a spear listed at 2 gp in the Player’s Handbook costs 2 Cp.