Topaline was a rare mineral critical to the function of life support systems in the 23rd century. Naturally-occurring, topaline also had sensor-disrupting properties.

In 2153, while evading Xindi-Reptilian seekers, Captain Archer, Lieutenant Reed, Major Hayes, and the Xindi-Arboreal Gralik Durr took refuge in a cave containing topaline ore, through which the seekers could not scan. (ENT: "The Shipment")

In 2267, Captain Kirk attempted to secure topaline mining rights on Capella IV, competing with Klingon interests on the planet. (TOS: "Friday's Child")

Minerals

Anorthosite • Antimonium • Bakrinium • Benamite • Beresium • Bernicium • Bilitrium • Boronite • Chrondite • Cormaline • Feldomite • Feldspar • Fortanium • Gallicite • Jakmanite • Jevonite • Kelbonite • Kemocite • Ladarium • Magnesite • Murinite • Neutronium • Nitrium • Noranium • Paralithium • Pergium • Regolith • Riddinite • Ryetalyn • Silithium • Styrolite • Talgonite • Topaline • Trellium • Tricyanate • Trimagnesite • Tritanium • Uridium • Vendarite • Zenite