GEOL 1301 - Lab 05 - Metamorphic Rocks.docx - GEOL 1301 Lab...

GEOL 1301
Lab 05
Metamorphic Rocks
Observe and record the properties of the metamorphic rock samples listed in the first table
and use them to identify the samples. Lists of properties can be found below, as well as links
to rock identification keys. Please complete both attached worksheets, then upload your
completed lab on Canvas.
Grain Size:
 Gravel > 2 mm
 Sand 0.06-2 mm
 Silt 0.004-0.06 mm
 Clay < 0.004 mm
Foliation:
 Foliated
 Non-foliated
Composition:
 Can you identify any minerals in the rock?
Other Observations:
 Color
 Banding
 Cleavage
 …
Identification Keys and Information About Rocks:

Examining and Classifying Metamorphic Rocks
Use the following link to identify the sedimentary rock samples listed in the table:
Sample
Number
Foliation Grain Size Composition Other Observations Rock Name
1 Gneissic
banding
Medium to
coarse grained
Feldspar, mice, quartz Does not react to acid
Parent rock- shist
Black and white
Gneiss
2 schistose Fine to medium