Gneiss and Gossan Definition

Definition of Gneiss and Gossan

The general Gneiss and Gossan definition can be stated as: 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. On the other hand, Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.. Along with definition of Gneiss and Gossan, get to know about Properties of Gneiss and Gossan. Get to know more information about Gneiss and Gossan origin and discoverer, etymology and class.

History of Gneiss and Gossan

The history of Gneiss and Gossan 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.

Gneiss and Gossan Origin and Discoverer

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

Etymology of Gneiss and Gossan

Along with Gneiss and Gossan definition, know more about the etymology of Gneiss and Gossan. Etymology of Gneiss and Gossan gives information about origin and formation of a particular rock. Know more about Formation of Gneiss and Formation of Gossan. The etymology of Gneiss is From the Middle High German verb gneist (to spark; so called because the rock glitters) while that of Gossan is From the Middle High German verb gneist (to spark; so called because the rock glitters). The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Gneiss and Gossan belong to Metamorphic Rocks. The sub-class, group and other categories of Gneiss and Gossan are listed below.

For Gneiss,

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

For Gossan,

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