Molybdenite is a type of mineral, made up of molybdenum and sulfur, that is used by the Cardassians. The floors of the storerooms in Quark's on Deep Space 9 were made from hardened molybdenite. (DS9 novel: Devil in the Sky) In 2371, Koto reported to the awakened High Gul of the Crescent Order that he had found that the structural support members of Deep Space 9 used molybdenite and other alloys. (DS9 novel: Station Rage)