Biology, 30.03.2021 15:20 shaferxspecial3737
You are tasked with identifying the four rock samples seen here. You and your lab partner disagree about the rocks that are
labeled Q and R. You are sure the rocks are marble and limestone. Your partner disagrees and thinks that they are igneous rocks
and not sedimentary rocks.
There is one key mineral you could identify to support your rock identifications. What is the test and why would you use it?
es)
A)
B)
Limestone and marble are both sedimentary rocks. You could use a hand
lens and check to see if there are layers.
Limestone and marble are always light in color. You could use the streak
test and scratch the rocks over the streak plate.
Limestone and marble contain calcite. You could use the hydrochloric acid
test to see if there is a reaction for that mineral
Limestone and marble contain calcite. You could use Moh's scale of
hardness to see if the rocks contained that mineral by trying to scratch
them with a penny.
o
D)
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