Minerals Lab GEOL-1403 questions and answers 2025
Halite (NaCl) - answer Used for food and roads
Muscovite Mica - answer Cosmetics, Electrical Insulator
Magnetite (Fe3O4) - answer Iron/steel industry
Calcite (CaCO3) - answer 3 on mohs scale, rhombohedron, double
refraction, used for concrete
Potassium Feldspar - answer exsolution lamellae, used for ceramics
Gypsum - answer 2 on mohs scale, used for sheetrock and plaster
Pyrite (FeS2) - answer Gunpowder, Matches
Tourmaline - answer Fire resistant clothing, brakes
Augite - answer No uses (no lithium)
Horneblende - answer Transmitter, gemstone
Galena (PbS) - answer High specific gravity, used for lead batteries, ammo
Corrundum - answer 9 on mohs scale, hexagonal prisms, used for Ruby,
Sapphire, Abrasives
Quartz (SiO2) - answer 7 on mohs scale, hexagonal prisms, w/ hexagonal
termination, used for window glass
Halite (NaCl) - answer Used for food and roads
Muscovite Mica - answer Cosmetics, Electrical Insulator
Magnetite (Fe3O4) - answer Iron/steel industry
Calcite (CaCO3) - answer 3 on mohs scale, rhombohedron, double
refraction, used for concrete
Potassium Feldspar - answer exsolution lamellae, used for ceramics
Gypsum - answer 2 on mohs scale, used for sheetrock and plaster
Pyrite (FeS2) - answer Gunpowder, Matches
Tourmaline - answer Fire resistant clothing, brakes
Augite - answer No uses (no lithium)
Horneblende - answer Transmitter, gemstone
Galena (PbS) - answer High specific gravity, used for lead batteries, ammo
Corrundum - answer 9 on mohs scale, hexagonal prisms, used for Ruby,
Sapphire, Abrasives
Quartz (SiO2) - answer 7 on mohs scale, hexagonal prisms, w/ hexagonal
termination, used for window glass
