Tonalite and Gossan Definition

Definition of Tonalite and Gossan

The general Tonalite and Gossan definition can be stated as: Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture. 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 Tonalite and Gossan, get to know about Properties of Tonalite and Gossan. Get to know more information about Tonalite and Gossan origin and discoverer, etymology and class.

History of Tonalite and Gossan

The history of Tonalite 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.

Tonalite and Gossan Origin and Discoverer

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

Etymology of Tonalite and Gossan

Along with Tonalite and Gossan definition, know more about the etymology of Tonalite and Gossan. Etymology of Tonalite and Gossan gives information about origin and formation of a particular rock. Know more about Formation of Tonalite and Formation of Gossan. The etymology of Tonalite is From Tonale Pass, northern Italy, + -ite1 while that of Gossan is From Tonale Pass, northern Italy, + -ite1. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Tonalite belongs to Igneous Rocks while Gossan belongs to Metamorphic Rocks. The sub-class, group and other categories of Tonalite and Gossan are listed below.

For Tonalite,

• Sub-class: Durable Rock and Hard Rock
• Group: Plutonic
• Other Categories: Coarse grained rock, Fine 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