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Trachyte
Trachyte

Nepheline Syenite
Nepheline Syenite



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Trachyte
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Nepheline Syenite

Trachyte and Nepheline Syenite Definition

1 Definition
1.1 Definition
Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali feldspar
Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz
1.2 History
1.2.1 Origin
Unknown
Unknown
1.2.2 Discoverer
Alexandre Brongniart and René Just Haüy
Unknown
1.3 Etymology
From Greek trakhus rough’ or trakhutēs roughness
From origin of a Palaeozoic nepheline syenite from northern Shanxi Province, China
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
1.5 Family
1.5.1 Group
Volcanic
Plutonic
1.6 Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Definition of Trachyte and Nepheline Syenite

The general Trachyte and Nepheline Syenite definition can be stated as: Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali feldspar. On the other hand, Nepheline Syenite is a holocrystalline plutonic rock resembling syenite but containing nepheline and lacking quartz. Along with definition of Trachyte and Nepheline Syenite, get to know about Properties of Trachyte and Nepheline Syenite. Get to know more information about Trachyte and Nepheline Syenite origin and discoverer, etymology and class.

History of Trachyte and Nepheline Syenite

The history of Trachyte and Nepheline Syenite 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.

Trachyte and Nepheline Syenite Origin and Discoverer

Trachyte and Nepheline Syenite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Trachyte and Nepheline Syenite. In this section, you will know about Trachyte and Nepheline Syenite Origin and Discoverer. Origin of Trachyte and Nepheline Syenite are Unknown. It is interesting to know the name of Trachyte and Nepheline Syenite discoverer. The Discoverer of Trachyte is Alexandre Brongniart and René Just Haüy and the discoverer of Nepheline Syenite is Unknown.

Etymology of Trachyte and Nepheline Syenite

Along with Trachyte and Nepheline Syenite definition, know more about the etymology of Trachyte and Nepheline Syenite. Etymology of Trachyte and Nepheline Syenite gives information about origin and formation of a particular rock. Know more about Formation of Trachyte and Formation of Nepheline Syenite. The etymology of Trachyte is From Greek trakhus rough’ or trakhutēs roughness while that of Nepheline Syenite is From Greek trakhus rough’ or trakhutēs roughness. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Trachyte and Nepheline Syenite belong to Igneous Rocks. The sub-class, group and other categories of Trachyte and Nepheline Syenite are listed below.

For Trachyte,

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

For Nepheline Syenite,

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