Taenite

Extraterrestrial rocks and olivine nodule(b)

Tellurobismutite

Tellurides associated with gold mineralization(b,d,e)

Tennantite

Porphyry-style tin-tungsten-molybdenum ores(f)

Massive sulphides within ophiolites(f)

Tetradymite

Tellurides associated with gold mineralization(a-d)

Tetrahedrite

Kuroko ores(a,b,d-f)

Tetrahedrite-tennantite-bearing copper-silver mineralization(d-f)

Mississippi Valley-style lead-zinc deposits(c)

Tetrahedrite, group

Polishing characteristics and problems(c)

Kuroko-style ores(e)

Massive volcanogenic sulphides(c,f)

Tetrahedrite-tennantite-bearing copper-silver mineralization(a-c)

Metamorphosed lead-zinc ores(d-f)

Thorite

Tin-niobium mineralization in granites(e)

Cassiterite, zircon and thorites in greisenized granite(a-e)

Thucholite

Fossil placer(c)

TiO2 minerals

Ilmenite and magnetite in basalts and dolerites(a,b)

Altered iron-titanium oxides in alkali olivine basalt(d-f)

Carbonatites(b,d)

Unmineralized intermediate rocks(b)

Unmineralized sandstones(a-e)

Unmineralized limestones(a,c)

Oxide placer deposits(c)

Fossil placer(c,d,f)

Clay ironstones and oolitic iron ores(f)

Iron formations and bauxite(f)

Clastic-hosted copper ores(a)

Carbonate-hosted base-metal mineralization(c)

Non-mineralized metamorphic rocks(b-d)

Todorokite

Manganese minerals(a,b)

Tourmaline

The effects of tarnishing and carbon coating(b,c)

Porphyry copper ores(d)

Porphyry copper and molybdenum ores(a,b)

Arsenopyrite-bearing associations(a)

Troilite

Extraterrestrial rocks and olivine nodule(a,b,c)