Prismatic Ores (七色鉱が) are a grade of seven high-class minerals that originate from YGGDRASIL.
The prismatic ores are a series of highly valuable minerals that were found in various locations in YGGDRASIL. They were metals that were regarded as even more valuable than the likes of something as adamantite. They are highly valued in the YGGDRASIL market. The guild of Ainz Ooal Gown had plans of letting the prismatic ores trickle into the market, hoping to drive the price increasingly up due to their rarity it offers. However, such rarity have led to other players scheming to rob it from owners of those ores.
According to Narberal Gamma, she noted how adamantite, a substance hailed by the New World inhabitants as the pinnacle of ore, is softer when compared to YGGDRASIL's prismatic ores.  Ainz Ooal Gown had once discovered a hitherto undiscovered mine for Celestial Uranium, one of the seven prismatic ores, and a critical element for producing the Caloric Stone. In a way, the prismatic ores play a valuable role in unlocking one of the hidden items like it within the game. It could only be obtained by gathering vast quantities of the prismatic ores and then expending a certain amount of them. Usually, that would entail an extremely difficult process, but Ainz Ooal Gown had accomplished it once. Overall, prismatic ores were the strongest or highest-tier materials found in YGGDRASIL, whereas metals such as adamantite were considered worthless to it. Strong level 70 monsters like Silver Cockroach Golem have been made from Star Silver, a prismatic ore.
List of Prismatic Ores
- So far, evidence suggests that the New World is devoid of prismatic ores.
- The Seven Hidden Mines contained major deposits of prismatic ores in YGGDRASIL.
- In the New World, if the names of one of the prismatic ores came up, Ainz might well abandon his present negotiations with the Dwarf Kingdom and subjugate the Dwarves by force.