Oil shale and Gneiss Definition

Definition of Oil shale and Gneiss

The general Oil shale and Gneiss definition can be stated as: Oil Shale is a fine-grained sedimentary rock from which oil is extracted. On the other hand, Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks. Along with definition of Oil shale and Gneiss, get to know about Properties of Oil shale and Gneiss. Get to know more information about Oil shale and Gneiss origin and discoverer, etymology and class.

History of Oil shale and Gneiss

The history of Oil shale and Gneiss gives information about where the rock was found and who was its discoverer. Almost each and every aspect of Earth's history is recorded in rocks be it the volcanoes which were erupted or the plants, animals and organisms which are now extinct, as rocks are present from millions of years.

Oil shale and Gneiss Origin and Discoverer

Oil shale and Gneiss definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Oil shale and Gneiss. In this section, you will know about Oil shale and Gneiss Origin and Discoverer. Origin of Oil shale and Gneiss are Unknown. It is interesting to know the name of Oil shale and Gneiss discoverer. The discoverer of Oil shale and Gneiss are Unknown.

Etymology of Oil shale and Gneiss

Along with Oil shale and Gneiss definition, know more about the etymology of Oil shale and Gneiss. Etymology of Oil shale and Gneiss gives information about origin and formation of a particular rock. Know more about Formation of Oil shale and Formation of Gneiss. The etymology of Oil shale is From Old English scealu in its base sense of thing that divides or separate while that of Gneiss is From Old English scealu in its base sense of thing that divides or separate. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Oil shale belongs to Sedimentary Rocks while Gneiss belongs to Metamorphic Rocks. The sub-class, group and other categories of Oil shale and Gneiss are listed below.

For Oil shale,

• Sub-class: Durable Rock and Soft Rock
• Group: Not applicable
• Other Categories: Fine grained rock and Opaque rock

For Gneiss,

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• Other Categories: Coarse grained rock, Medium grained rock and Opaque rock