Norite and Chalk Definition

Definition of Norite and Chalk

The general Norite and Chalk definition can be stated as: Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine. On the other hand, Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. Along with definition of Norite and Chalk, get to know about Properties of Norite and Chalk. Get to know more information about Norite and Chalk origin and discoverer, etymology and class.

History of Norite and Chalk

The history of Norite and Chalk 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.

Norite and Chalk Origin and Discoverer

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

Etymology of Norite and Chalk

Along with Norite and Chalk definition, know more about the etymology of Norite and Chalk. Etymology of Norite and Chalk gives information about origin and formation of a particular rock. Know more about Formation of Norite and Formation of Chalk. The etymology of Norite is From the Norwegian name for Norway, Norge while that of Chalk is From the Norwegian name for Norway, Norge. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Norite belongs to Igneous Rocks while Chalk belongs to Sedimentary Rocks. The sub-class, group and other categories of Norite and Chalk are listed below.

For Norite,

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

For Chalk,

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