Minerals
Rocks
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Igneous Rocks
Inner Structure of the Earth
Mass Wastage
Metamorphic Rocks
Minerals
Our Place in the Universe
Plate Tectonics
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Sedimentary Rocks
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Photos of Rocks
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Pumice
Pumice
Pumice
Photos are copyright free for non-commercial educational uses. Just credit photos to R.Weller/Cochise College.
Photos
Pumice Glassy Frothy Texture Close Up
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