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ROCKS & MINERALS Flashcards | StudBud
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ROCKS & MINERALS
ROCKS & MINERALS
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#earth science
Flashcards
20 cards
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1
A vesicular rock that contains pyroxene,and olivine.
pumice
vesicular andesite
scoria
vesicular rhyolite
2
Which mineral has a metallic luster, black streak, and is composed of iron?
pyroxene
galena
graphite
magnetite
3
The luster, color and hardness of a mineral is determined by the minerals?
location where it is found
internal arrangement of atoms
origin
size
4
A foliated rock, shows mineral alignment, not banding and visible mica crystals?
slate
schist
quartzite
gneiss
5
Under high pressure & temperature results in recrystallization of?
volcanic rock
metamorphic rock
igneous rock
sedimentary rock
6
Which property is common to most light-colored igneous rocks?
a lot of mafic minerals
fine-grained texture
low density
extrusive formation
7
A rock formed by compaction & cementation of sediments .08 cm in diameter?
phyllite
shale
breccia
sandstone
8
Which group list rocks in order by grain size from largest to smallest.
siltstone, breccia, sandstone
siltstone, sandstone, conglomerate
sandstone, siltstone, shale
conglomerate, shale, sandstone
9
Sedimentary, Igneous, and metamorphic rocks can be classified by differences in their?
origins
color
density
age
10
An intrusive igneous rock of 75% potassium, 7% quartz, and 5 mm crystal size.
andesite
pegmatite
pumice
granite
11
Rocks formed deep underground have a texture of?
fine grained
vesicular
coarse grained
glassy
12
Which characteristic of rocks increase as rocks are metamorphosed?
color
density
porosity
number of fossils
13
Cross section A shows the contact metamorphism of sandstone becomes?
slate
marble
quartzite
gniess
14
What can be determined by the different rock particles in this conglomerate?
they are part of a larger igneous rock
they are all the same age
they have different origins
they all have the same minerals
15
Which mineral is harder?
olivine
quartz
pyroxene
16
Which of the following elements are NOT found in olivine?
Mg
Si
Pb
Na
17
Large deposits of rock salt usually form in areas of?
continental ice sheets
evaporating seas
fault zones in crust
deep inside the Earth
18
Coal can be described as?
chemical precipitates
organic plant remains
glassy texture, igneous
a land derived rock
19
This rocks vesicular texture indicates the rock was formed?
quickly, above the Earth's surface
quickly, deep below the Earth's surface
slowly,above the Earth's surface
slowly, deep inside the Earth
20
A rock that forms directly from land-driven sediments is?
basalt
limestone
siltstone
slate
