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Geosciences LibreTexts

7.6: Activity 7E- Identifying Igneous Rocks

  • Page ID
    14811
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    Sample Number

    Does the rock contain crystals, holes, glass, or clasts?

    Texture

    Cooling history

    Intrusive or Extrusive?

    Slow or Rapid cooling?

    Overall color (light, gray, dark, green; may use CI)

    Composition

    Igneous Rock Name