WorksheetsRock and Mineral Review 4
Total questions: 10
Worksheet time: 20mins
One difference between a breccia rock and a conglomerate rock is that the particles in a breccia rock are
more aligned
more angular
harder
land derived
Which rock is composed of the mineral halite that formed when seawater evaporated?
limestone
dolostone
rock gypsum
rock salt
The photograph shows a large outcrop of rock composed primarily of visible crystals of mica, quartz, and feldspar. Based on the composition and foliated texture, this rock can best be identified as
marble
schist
slate
anthracite coal
The minerals talc, muscovite mica, quartz, and olivine are similar because they
have the same hardness
are the same color
contain silicon and oxygen
break along cleavage planes
Which mineral is commonly mined as a source of the element lead (Pb)?
galena
quartz
magnetite
gypsum
The photograph shows an outcrop where a light-colored, igneous rock is cross cut by a dark-colored, igneous rock. This fine-grained, dark-colored, igneous rock is most likely
rhyolite
diorite
basalt
gabbro
Which characteristic do samples of the mineral pyroxene normally exhibit?
yellow to amber color
bubbling in hydrochloric acid
cleaves at 56° and 124°
hardness of 5 to 6
Which two properties are most useful in distinguishing between galena and halite?
cleavage and color
luster and color
hardness and streak
streak and cleavage
Most of the sediment that is compacted and later forms shale bedrock is
clay
silt
sand
pebbles
Within which rock type would a fossil most likely be found?
Slate
Gabbro
Shale
Pumice
