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Identify the 7 Igneous Rocks

Identify the 7 Igneous Rocks

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Identify the 7 Igneous Rocks

**Igneous Rock Samples** 1. **Sample 1:** - Image of a granitic rock with a coarse-grained texture. 2. **Sample 2:** - Image of a reddish, porous rock, likely pumice or scoria. 3. **Sample 3:** - Image of a dark, fine-grained rock, possibly basalt. 4. **Sample 4:** - Image of a light-colored, porous rock, similar to pumice. 5. **Sample 5:** - Image of a rock with a speckled appearance, potential andesite or diorite. 6. **Sample 6:** - Image of a rock with visible large crystals embedded in a finer matrix. A scale indicating "2 cm" is present, useful for understanding the size of the crystals. 7. **Sample 7:** - Image of a shiny, glassy rock, likely obsidian. --- ### Rock Identification Criteria: Rocks are identified based on their: 8. **Texture** And 9. **Composition**
Transcribed Image Text:**Igneous Rock Samples** 1. **Sample 1:** - Image of a granitic rock with a coarse-grained texture. 2. **Sample 2:** - Image of a reddish, porous rock, likely pumice or scoria. 3. **Sample 3:** - Image of a dark, fine-grained rock, possibly basalt. 4. **Sample 4:** - Image of a light-colored, porous rock, similar to pumice. 5. **Sample 5:** - Image of a rock with a speckled appearance, potential andesite or diorite. 6. **Sample 6:** - Image of a rock with visible large crystals embedded in a finer matrix. A scale indicating "2 cm" is present, useful for understanding the size of the crystals. 7. **Sample 7:** - Image of a shiny, glassy rock, likely obsidian. --- ### Rock Identification Criteria: Rocks are identified based on their: 8. **Texture** And 9. **Composition**
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