This post is a list of popular rocks (non-gemstone). This list was generated with the help of Google Search. A list of popular gemstones can be found at this link. There are 33 rocks listed below alphabetically.
License: CC BY 2.0
License: CC BY 2.0
Gabbro
Photo source: Wikimedia Commons, NASA
Gneiss
Photo source: Wikimedia Commons, Bjoertvedt
License: CC BY-SA 2.1 ES
Marble
Photo source: Wikimedia Commons, Luis Miguel Bugallo Sanchez (Lbumga)