Sandstone 3 : A compacted sedimentary rock composed of the minerals quartz or feldspar. Sandstone is a common rock in which petroleum and water accumulate. (ITOGP)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}