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Name: KEY Date: Class: Metamorphic Rock Compare and Contrast 1. Metamorphic rocks are formed by heat & pressure in which the structure, texture, or composition of the rock have changed. 2. What types of rocks can become metamorphic rocks? All types: igneous, sedimentary, & metamorphic. 3. What must occur for a rock to become a metamorphic rock? Heat & pressure 4. Foliated - describes the texture of the metamorphic rock in which the mineral grains are arranged in planes or bands 5. Non-Foliated - describes the texture of the metamorphic rock in which the mineral grains are NOT arranged in planes or bands Granite How does it feel (texture)? Gneiss How does it feel (texture)? What colors do you see? What colors do you see? Is the grain flat & spread out or more round & together? Is the grain flat & spread out or more round & together? Draw a picture: (use colored pencils) Draw a picture: (use colored pencils) Rock Origin: metamorphic, sedimentary, igneous CIRCLE Rock Origin: metamorphic, sedimentary, igneous CIRCLE How did it form? Inside earth, cooling magma, slow How did it form? Heat and pressure Foliated / Non-Foliated / Neither? Why? Neither, not metamorphic Shale How does it feel (texture)? Foliated / Non-Foliated / Neither? Why? Foliated, it has layers Slate How does it feel (texture)? What colors do you see? What colors do you see? Is the grain flat & spread out or more round & together? Is the grain flat & spread out or more round & together? Draw a picture: Draw a picture: Rock Origin: metamorphic, sedimentary, igneous CIRCLE Rock Origin: metamorphic, sedimentary, igneous CIRCLE How did it form? Weathering, erosion, deposition, compaction, cementation of rock particles Foliated / Non-Foliated / Neither? Why? Neither, not metamorphic How did if form? Heat and pressure Foliated / Non-Foliated / Neither? Why? Foliated, it has layers. Mica Schist How does it feel (texture)? How does it feel (texture)? What colors do you see? What colors do you see? Is the grain flat and spread out or more round and together? Is the grain flat and spread out or more round and together? Draw a picture: (use colored pencils) Draw a picture: (use colored pencils) Rock Origin (metamorphic, sedimentary, igneous): Rock Origin (metamorphic, sedimentary, igneous): How did it form? How did it form? Foliated / Non-Foliated? Why? Foliated / Non-Foliated? Why? Sandstone How does it feel (texture)? Quartzite How does it feel (texture)? What colors do you see? What colors do you see? Is the grain flat and spread out or more round and together? Is the grain flat and spread out or more round and together? Draw a picture: Draw a picture: Rock Origin (metamorphic, sedimentary, igneous): Rock Origin (metamorphic, sedimentary, igneous): How did it form? How did if form? Foliated / Non-Foliated? Why? Foliated / Non-Foliated? Why?
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