Department of Earth and Environmental Science

Igneous Rocks

Examples of igneous rocks include: Basalt, Diorite, Gabbro, Obsidian, Pumice, Scoria, Granite, Volcanic Breccia, Andesite, Dunite, Peridotite, Rhyolite.

Samples of extrusive and intrusive rocks serve as an introduction to the forces at work beneath the Earth’s crust.

Click on any rock to find out more information about that rock type.

Photo credits: Rebecca Caldwell

Collections

History of the Collections

Overview of the Collections

Teaching Collections

• Teaching Demonstrations and Supplies
• Field Trip Supplies
• Earth Science Collections

Accessing the Collections

Collections Staff

Contact

Department of Earth and Environmental Science
240 S. 33rd Street
Hayden Hall
Philadelphia, PA
19104-6316

nmccann@sas.upenn.edu

(T) - 215-746-0086