TL;DR: Troilite is a main entry in the 外星矿物知识引擎 database.
Troilite (FeS) is the most common sulfide mineral in meteorites and lunar samples. Sulfur extracted from troilite can be used to make sulfur concrete - a water-free construction material ideal for lunar applications.
Occurrence
Ubiquitous in iron and stony meteorites; common in lunar mare basalts as accessory mineral
Significance
Source of sulfur for construction materials; potential reagent for ore processing; sulfur concrete feedstock
Source
Apollo samples, meteorite analysis