Porphyry and Troctolite Definition

Definition of Porphyry and Troctolite

The general Porphyry and Troctolite definition can be stated as: Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix. On the other hand, Troctolite is a mafic intrusive rock type. It consists essentially of major but variable amounts of olivine and calcic plagioclase along with minor pyroxene. It is an olivine-rich anorthosite, or a pyroxene-depleted relative of gabbro. Along with definition of Porphyry and Troctolite, get to know about Properties of Porphyry and Troctolite. Get to know more information about Porphyry and Troctolite origin and discoverer, etymology and class.

History of Porphyry and Troctolite

The history of Porphyry and Troctolite 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.

Porphyry and Troctolite Origin and Discoverer

Porphyry and Troctolite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Porphyry and Troctolite. In this section, you will know about Porphyry and Troctolite Origin and Discoverer. Origin of Porphyry is Egypt whereas Origin of Troctolite is Unknown. It is interesting to know the name of Porphyry and Troctolite discoverer. The Discoverer of Porphyry is Unknown and the discoverer of Troctolite is Christian Leopold von Buch.

Etymology of Porphyry and Troctolite

Along with Porphyry and Troctolite definition, know more about the etymology of Porphyry and Troctolite. Etymology of Porphyry and Troctolite gives information about origin and formation of a particular rock. Know more about Formation of Porphyry and Formation of Troctolite. The etymology of Porphyry is From Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites while that of Troctolite is From Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Porphyry and Troctolite belong to Igneous Rocks. The sub-class, group and other categories of Porphyry and Troctolite are listed below.

For Porphyry,

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

For Troctolite,

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