Do you know the difference between sedimentary, igneous and metamorphic rocks? Are you interested in their geologic origin, chemical composition or how each type affects the landscape? Do you know the differences between limestone, granite and marble as building materials? You will find these and lots of other interesting facts about rocks in this second edition of "Rocks and Their Origins" published in 1922. The author, Grenville A. J. Cole, was an English geologist, Professor of Geology in the Royal College of Science for Ireland and an avid cyclist.

Latest episodes of the podcast Rocks and Their Origins by Grenville A. J. Cole

• 00 - Preface
• 01 - On Rocks in General
• 02 - The Limestones, Part 1
• 03 - The Limestones, Part 2
• 04 - The Limestones, Part 3
• 05 - The Sandstones, Part 1
• 06 - The Sandstones, Part 2
• 07 - Clays, Shales and Slates, Part 1
• 08 - Clays, Shales and Slates, Part 2
• 09 - The Igneous Rocks, Part 1
• 10 - The Igneous Rocks, Part 2
• 11 - The Igneous Rocks, Part 3
• 12 - Metamorphic Rocks, Part 1
• 13 - Metamorphic Rocks, Part 2
• 14 - List of the Common Minerals that Form Rocks