Chalk and Phonolite Definition

Definition of Chalk and Phonolite

The general Chalk and Phonolite definition can be stated as: Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. On the other hand, Phonolite is an uncommon extrusive igneous rock volcanic rock of intermediate chemical composition between felsic and mafic. Along with definition of Chalk and Phonolite, get to know about Properties of Chalk and Phonolite. Get to know more information about Chalk and Phonolite origin and discoverer, etymology and class.

History of Chalk and Phonolite

The history of Chalk and Phonolite 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.

Chalk and Phonolite Origin and Discoverer

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

Etymology of Chalk and Phonolite

Along with Chalk and Phonolite definition, know more about the etymology of Chalk and Phonolite. Etymology of Chalk and Phonolite gives information about origin and formation of a particular rock. Know more about Formation of Chalk and Formation of Phonolite. The etymology of Chalk is From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone while that of Phonolite is From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Chalk belongs to Sedimentary Rocks while Phonolite belongs to Igneous Rocks. The sub-class, group and other categories of Chalk and Phonolite are listed below.

For Chalk,

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

For Phonolite,

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