- goethite
- goffer
- goffering
- Gooch crucible
- good conductor
- grainy sludge
- good oil
- goongarrite
- gordonite
- granite quarry
- granite ridge
- granite wash
- granitic layer
- granitic rock
- granitic subsoil
- granitic texture
- granoblastic
- granoblastic texture
- granophyric
- granophyric texture
- granular limestone
- granulate
- granulated
- granulated rock
- granulating crusher
- granulating machine
- granulator
- granule gravel
- granulitic
- granulitic structure
- graphic granite
- graphic panel
- graphic recorder
- graphic scale
- graphic structure
- graphic texture
- graphic triangulation
- graphite deposit
- graphite flake
- graphitic
- graphitization
- graphophyric texture
- grappling
- gravel
- Gothlandian period
- gouge
- gould battery
- governor pump
- grab iron
- grab sample
- gradation
- graded bedding
- graded profile
- graded river
- graded sediment
- graded shoreline
- grader
- gradienter
- grading
- grading analysis
- grading curve
- grading plant
- graduated cylinder
- graduated screw
- graft polymer
- graft polymerization
- grain oil
- grain refinement
- grained rock
- graininess
- gram calorie
- gram molecule
- gram-equivalent
- gravel bank
- gravel bar
- gravel desert
- gravel hopper
- gravel mine
- gravel pit
- gravimetric analysis
- gravimetric map
- gravimetric survey
- gravitational constant
- gravitational drainage
- gravity measurement
- gravity spring
- gravity wave
- Gray process
- grazing angle
- grease
- grease classification
- grease cock
- grease cup
- grease manufacturing
- grease nipple
- greasy material
- green copper
- green tack
- grind
- grindability