Shoshonite and Pegmatite Definition

Definition of Shoshonite and Pegmatite

The general Shoshonite and Pegmatite definition can be stated as: Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass. On the other hand, Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. Along with definition of Shoshonite and Pegmatite, get to know about Properties of Shoshonite and Pegmatite. Get to know more information about Shoshonite and Pegmatite origin and discoverer, etymology and class.

History of Shoshonite and Pegmatite

The history of Shoshonite and Pegmatite 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.

Shoshonite and Pegmatite Origin and Discoverer

Shoshonite and Pegmatite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Shoshonite and Pegmatite. In this section, you will know about Shoshonite and Pegmatite Origin and Discoverer. Origin of Shoshonite is Wyoming,USA whereas Origin of Pegmatite is Unknown. It is interesting to know the name of Shoshonite and Pegmatite discoverer. The Discoverer of Shoshonite is Iddings and the discoverer of Pegmatite is R. J. Hauy.

Etymology of Shoshonite and Pegmatite

Along with Shoshonite and Pegmatite definition, know more about the etymology of Shoshonite and Pegmatite. Etymology of Shoshonite and Pegmatite gives information about origin and formation of a particular rock. Know more about Formation of Shoshonite and Formation of Pegmatite. The etymology of Shoshonite is From the place of origin called Shoshone riverin Wyoming while that of Pegmatite is From the place of origin called Shoshone riverin Wyoming. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Shoshonite and Pegmatite belong to Igneous Rocks. The sub-class, group and other categories of Shoshonite and Pegmatite are listed below.

For Shoshonite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Volcanic
• Other Categories: Coarse grained rock, Fine grained rock, Medium grained rock and Opaque rock

For Pegmatite,

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