Igneous Rocks ID How to classify and identify igneous rocks and what that tells us about the rock's formation environment and geologic history.
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Apr16 14 Last Modified: 2014-07-18 16:04:15 http://d32ogoqmya1dw8.cloudfront.net/files/NAGTWorkshops/video/workshop2014/minutevids/igneous_rocks_id.v2.mp4
Provenance Katryn Wiese, City College of San Francisco
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