Enneasartorite is a very rare mineral with formula Tl<sub>6</sub>Pb<sub>32</sub>As<sub>70</sub>S<sub>140</sub>. It belongs to sartorite homologous series. It is related to other recently approved minerals of the sartorite series: hendekasartorite and heptasartorite. All come from Lengenbach quarry in Switzerland, which is famous for thallium sulfosalts. Enneasartorite is chemically similar to edenharterite and hutchinsonite.