Chalk and Borolanite Definition

Definition of Chalk and Borolanite

The general Chalk and Borolanite definition can be stated as: Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. On the other hand, Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix. Along with definition of Chalk and Borolanite, get to know about Properties of Chalk and Borolanite. Get to know more information about Chalk and Borolanite origin and discoverer, etymology and class.

History of Chalk and Borolanite

The history of Chalk and Borolanite 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 Borolanite Origin and Discoverer

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

Etymology of Chalk and Borolanite

Along with Chalk and Borolanite definition, know more about the etymology of Chalk and Borolanite. Etymology of Chalk and Borolanite gives information about origin and formation of a particular rock. Know more about Formation of Chalk and Formation of Borolanite. 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 Borolanite 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 Borolanite belongs to Igneous Rocks. The sub-class, group and other categories of Chalk and Borolanite are listed below.

For Chalk,

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

For Borolanite,

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