tripolite - uncovering coal seam
- turrelite
- turret ice
- turreted
- turriculate
- turritellid
- turtle
- turtle stone
- turtleback
- tusc
- tusculite
- tussock
- tut
- tutvetite
- tuxtlite
- tuya
- tuyamunite
- tuyere
- TV
- tvalchrelidzeite
- TVD
- TVD log
- tveitasite
- tveitite
- TVG
- TVSW
- twaite shad
- twart
- twenty-one holes were drilled along N-S line spaced at 200m intervals
- twig 1. Grapt. текальная группировка 2. палеобот. побег, веточка 3. волшебный прут (см. тж. divining rod)
- twin
- twin anticline
- twin crystals
- twin entry
- twin glide line
- twin gliding
- twin mesh structure
- twin outboard chain
- twin plane
- twin pulley-block
- twin surface