Rocks and Minerals

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Rocks and Minerals by Mind Map: Rocks and Minerals

1. Obsidian- Is an igneous rock because of its smooth surface.

2. Quartz- Is metamorphic because of its layered surface.

3. Granite- Is sedimentary because of its rocky and layered surface

4. Calcite- Is metamorphic because of its layered surface.

5. Sandstone- Is sedimentary because of its smooth and layered surface.