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194 CHAPTER 7 INTERPRETING METAMORPHIC ROCKS Sample Minerals presen ...
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194 CHAPTER 7 INTERPRETING METAMORPHIC ROCKS Sample Minerals present METAMORPHIC ROCKS STUDY SHEET Type of metamorphism Texture (grain orientation, size, shape) Name Metamorphic grade (low, medium, or high grade) Rock name Possible protolith
Metamorphic Rock 1 •Do not fizz •Crystalline
Metamorphic Rock 2 •Shiny luster •Schistose cleavage
Metamorphic Rock 3 •Dull luster •Slaty cleavage
Metamorphic Rock 4 LIBRARY SCIENCEphotoLIBRAR SCIENCE SCIENCEphotoLIBRARY COBRARY CEphotoUBRARY CIENCEphotoLIBRARY SCIENCEphotoLIBRARY fizz SCIENCEphotoLIBRARY SCIENCEphotoLIBRARY SCIENCEphoto
Metamorphic Rock 5 Dark, compact, coarse crystals
Metamorphic Rock 6 Black, oily shiny surface, brittle
Metamorphic Rock 7 •Softer than finger nail •Greasy feel
Metamorphic Rock 8 Alternate light and dark band
Metamorphic Rock 9 Schistose cleavage •Layered mica crystal
Metamorphic Rock 10 Do you see elongated pebbles?
Answer: Sample Minerals present Texture Type of metamorphism Metamorphic grade Rock Name Possible protolith Rock 1 Quartz Granular, medium to coarse grained, non-foliated Regional and Contact Medium to High Quartzite Sandstone Rock 2 Graphite, muscov