Activity 2 - Igneous Rock Identification done

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Georgia State University *

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16092

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Geology

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Apr 3, 2024

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docx

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Uploaded by DrBee4197

Name: GEOL 1121 Lab 4 – Rock cycle and Igneous Rocks Igneous Identification Activity *Please turn in the completed chart below to receive credit for this activity. Identify the igneous rocks and describe their properties Image or Link to 3-D model of the rock Rock Name: Composition: (mafic/intermediate/ felsic) Color(s): Texture: (aphanitic/ phaneritic/ glassy/ vesicular) Origin: (Volcanic/Plutonic) Sample 1 basalt mafic Dark gray, few light mineral s aphanitic Volcanic Sample 2 Sample 2 diorite intermediate Dark gray color phaneritic plutonic

Sample 3 andesite intermediate Dark gray color aphanitic volcanic Sample 4 Sample 4 granite felsic Light gray color phaneritic plutonic Sample 5 Sample 5 Obsidian felsic Dark color aphanitic volcanic Sample 6 Sample 6 pumice felsic Light color aphanitic Volcanic Sample 7 Sample 7 rhyolite felsic Light color aphanitic volcanic Sample 8 Sample 8 Scoria mafic Dark color aphanitic volcanic Sample 9 peridotite mafic Dark gray color phaneritic plutonic

Sample 10 Pumice felsic Light color aphanitic volcanic

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Activity 2 - Igneous Rock Identification done

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