- salantol
- salband
- roofing
- roofing slate
- root drum
- rope
- rope coupling
- rope spear
- rope worm
- rose oil
- rosieresite
- rosin grease
- rotary blower
- rotary breaker
- rotary crusher
- rotary system
- rotenone
- rotten lode
- rottenstone
- rough diamond
- roughing cut
- round buddle
- round specimen
- routine test
- rubber lubricant
- rubi spinel
- rubicelle
- ruddle
- salicyl
- salicylaldehyde
- saliferous breccia
- salification
- salina
- Salinan stage
- saline
- saline deposit
- saline formation
- salinization
- salinometer
- salmonsite
- salol
- salt ammoniac
- salt bath
- salt bed
- salt bridge
- salt concentration
- salt deposit
- salt desert
- salt diapir
- salt dome
- salt effect
- salt efflorescence
- salt formation
- salt grainer
- salt ice
- salt intrusion
- salt lake
- salt marsh
- salt mining
- salt mist
- salt pillow
- salt plug
- salt settler
- salt stains
- salt structure
- salt tectonics
- salted well
- saltferous clay
- saltiness
- salting
- saltwater well
- salty rock
- salvage tug
- salvage value
- salvarsan
- salve
- salve oil
- samarium
- samarskite
- sample bag
- sample box
- sample bucket
- sample cell
- sample cock
- sample examination
- rundown box
- running
- running trap
- Rupelian stage
- rusty
- rutherfordium
- S-glass
- saccharate
- saccharoidal structure
- safe strength
- safety bottle
- safety device
- safety fuel
- safety lane
- safety wall