Observing and Naming

Short Videos for Study of Igneous Rocks

  • guided observations of features
  • focus on identification by name

If you find these videos useful, or if you have comments or feedback, contact Scott Brande mailto:soskarb@gmail.com

Introduction to Naming Common Igneous Rocks

Coarse-grained Igneous Rock

Fine-grained Igneous Rocks

Granite and Gabbro

Gabbro and Basalt

Granite and Rhyolite

Scoria and Basalt

Dunite and Peridotite

Porphyritic Texture

Breccia and Tuff


Pumice and Scoria