Identifying Igneous Rocks
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Description:Clip - 0:54 min - Igneous rocks are one of the three main classifications of rocks, and they are formed both above and below ground. Learn about the intrusive and coarse-grained nature of igneous rocks with help from expert: Jane Stammer Tags:eHow, geology, identifying, igneous, magma, rocks, types, volcanoes Length:54 Seconds Date Added:March 2012 Brands: |
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