Osmium

Osmium items include:
 * Osmium Katana
 * Osmium Blade
 * Osmium Great Sword
 * Osmium Daikatana
 * Osmium Armorset
 * Osmium Battleset
 * Osmium Martialset
 * Material Core (Osmium)

It is the same grade as Lapis items.

Matching Epaulets:
 * Epaulet of Fighter +6
 * Epaulet of Sage +6
 * Epaulet of Guardian +6