Metamorphic+Rock+Identification+Lab
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School
Liberty University *
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Course
12
Subject
Geology
Date
Jan 9, 2024
Type
Pages
3
Uploaded by keelydrewry
Metamorphic Rock Identification Lab
Student Information
Name:
Date:
Objective
To identify metamorphic rocks based on physical properties such as the presence of foliation,
composition, crystal size, and parent rock
Materials
• Metamorphic Rock Identification Website – link in lesson.
• Metamorphic rock images in the lesson.
• Foliated and Non-Foliated Metamorphic Rock Chart (appended to this worksheet)
Purpose
(5 pts)
Refer to the
Objective
of this lab and read through the
Procedure
and write a 1–2 sentence purpose
statement for this lab. What do you want the outcome to be? What question(s) are you trying to
answer?
Hypothesis
(5 pts)
Write your hypothesis for this lab.
It should be 1 sentence and be an if/then statement.
(Remember
this is your educated guess as to what will happen in this lab.)
Procedure
1.
Go to the Metamorphic Rock Identification website that is in the lesson.
2.
Identify the properties and the names of the 8 unknown metamorphic rocks.
3.
Complete the chart in the
Data
section of the lab worksheet using the information from the
website, the Foliated and Non-Foliated Metamorphic Rock Chart, and the images provided in
lesson.
4.
Complete the remaining sections of the lab worksheet.
5.
Save and upload the completed lab worksheet to the assignment upload in the course.
Data
(50 pts)
Fill in the chart below in order to identify each rock sample.
(1 pts per blank + 3 pts per Rock Name = 50
pts total)
Data Table 1
Sample
Number
Foliated or Non-
Foliated
Type of Foliation
(N/A if Non-Foliated)
Composition
Probable
Parent Rock
Rock Name
#1
#2
Mica, Quartz
#3
Non-Foliated
N/A
#4
#5
Slate
#6
#7
Foliated
#8
Carbon
Observations (10 pts)
Write down a few differences you observe between Samples #2 and #6 from the Metamorphic Rock
Identification Website (texture, color, parent rock, etc.). Now look at the pictures of metamorphic rock
samples in the lesson. What differences do you notice between the pictures of slate and phyllite? State
your answers in 3-5 sentences.
Analysis & Conclusion (15 pts)
According to the Foliated Metamorphic Rock Chart slate, phyllite, schist, and gneiss can all have the
same parent rock (shale). If this is true, what determines the difference between a slate and a gneiss
rock that both are formed from shale? What role does the parent rock play in determining the type of
metamorphic rock that will be formed? In a rock that has undergone contact metamorphism, would you
expect to find foliation? Why or why not? State your answers in 3-5 sentences.
Application (5 pts)
Quartzite and marble can look very similar. Why do you think artists carve sculptures out of marble
more often than quartzite?
Hint: Think composition and parent rock.
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