GEOLOGY QUESTIONS AND ANSWERS 2024/2025
metamorphic foliation – Answer refers to the repetitions of planar surfaces or layers in a metamorphic
rock. Can give a metamorphic rock a striped or streaked appearance in an outcrop, and/or give them the
ability to split into thin sheets.
metamorphism is a _ process with a _ chemical system – Answer solid-state, closed
metamorphism of limestone or domolite is – Answer marble
metamorphism of quarts sandstone is – Answer quartzite
Mineral cleavage is determined by – Answer structural weaknesses associated with different bond
strengths
Mineral polymorphism refers to which of the following? – Answer minerals with the same composition
but different crystal shapes/structures
miscellaneous properties – Answer magnetism, feel, denseness, reacts to acid, crystal habit, odor
most abundant rocks in earth's crust – Answer igneous rocks
muscovite – Answer transparent mica
non-metallic luster – Answer adamantine-brilliant, like that of polished diamond
vitreous-glossy
resinous-resin
pearly-pearly like
silky-gypsum
earthy-dull, little reflection; kaolinite, geothite.
, Olivine - Answer(Mg+2, Fe+2)SiO4
Oxygen has a charge of - Answer-2
Packing tends to determine crystal structure. Given this, which are more important for determining the
structure and shape of a crystal – Answer anions
pegmatite – Answer Texture of intrusive igneous rock with very large crystals
Peridotite – Answer ultramafic igneous rock
Physical properties of minerals – Answer Hardness, luster, color, streak, cleavage, fracture, crystal form,
miscellaneous
pluton – Answer an intrusive igneous structure that results from the cooling and hardening of magma
beneath the surface of Earth
plutonic – Answer An igneous rock that solidified at a considerable depth underground. (large crystal
size)
polymorphs – Answer solids having the same chemical compositions but different crystal structures,
diamonds and graphite are polymorphs of carbon
PORPHYRY – Answer Texture of igneous rock with large crystals set in a matrix of fine-grained crystals
pyroclastic – Answer The expulsion of ash, cinders, bombs, and gases during an explosive volcanic
eruption
Fracture – Answer to break along irregular surfaces
metamorphic foliation – Answer refers to the repetitions of planar surfaces or layers in a metamorphic
rock. Can give a metamorphic rock a striped or streaked appearance in an outcrop, and/or give them the
ability to split into thin sheets.
metamorphism is a _ process with a _ chemical system – Answer solid-state, closed
metamorphism of limestone or domolite is – Answer marble
metamorphism of quarts sandstone is – Answer quartzite
Mineral cleavage is determined by – Answer structural weaknesses associated with different bond
strengths
Mineral polymorphism refers to which of the following? – Answer minerals with the same composition
but different crystal shapes/structures
miscellaneous properties – Answer magnetism, feel, denseness, reacts to acid, crystal habit, odor
most abundant rocks in earth's crust – Answer igneous rocks
muscovite – Answer transparent mica
non-metallic luster – Answer adamantine-brilliant, like that of polished diamond
vitreous-glossy
resinous-resin
pearly-pearly like
silky-gypsum
earthy-dull, little reflection; kaolinite, geothite.
, Olivine - Answer(Mg+2, Fe+2)SiO4
Oxygen has a charge of - Answer-2
Packing tends to determine crystal structure. Given this, which are more important for determining the
structure and shape of a crystal – Answer anions
pegmatite – Answer Texture of intrusive igneous rock with very large crystals
Peridotite – Answer ultramafic igneous rock
Physical properties of minerals – Answer Hardness, luster, color, streak, cleavage, fracture, crystal form,
miscellaneous
pluton – Answer an intrusive igneous structure that results from the cooling and hardening of magma
beneath the surface of Earth
plutonic – Answer An igneous rock that solidified at a considerable depth underground. (large crystal
size)
polymorphs – Answer solids having the same chemical compositions but different crystal structures,
diamonds and graphite are polymorphs of carbon
PORPHYRY – Answer Texture of igneous rock with large crystals set in a matrix of fine-grained crystals
pyroclastic – Answer The expulsion of ash, cinders, bombs, and gases during an explosive volcanic
eruption
Fracture – Answer to break along irregular surfaces
