Geologist Abdullahi Ali Yusuf - Some texture of Extrusive igneous rock | Facebook
:max_bytes(150000):strip_icc()/about-igneous-rocks-1438950_final_CORRECTED2FINAL-f8d738e151b9437caa256d21155d091f.png "Igneous Rocks: Everything You Need to Know")
Igneous Rocks: Everything You Need to Know
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Igneous rocks -- an essential read for geology aficcionados
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Rocks 2.3
