Rock Identification with Willsey: Intro to rock types and useful ID tips

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How to identify the different types of rocks

Rock Identification with Willsey: Nonfoliated Rocks - Quartzite

Intro to Metamorphic Rocks for Middle School & older. NGSS: 4-ESS1

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Rock Identification

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Types of Rocks

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Credit Class Schedule Summer/Fall 2012 - Rock Valley College

Rock and Rocks Types