Chalk and Pegmatite Definition

Definition of Chalk and Pegmatite

The general Chalk and Pegmatite definition can be stated as: Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers. On the other hand, Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. Along with definition of Chalk and Pegmatite, get to know about Properties of Chalk and Pegmatite. Get to know more information about Chalk and Pegmatite origin and discoverer, etymology and class.

History of Chalk and Pegmatite

The history of Chalk and Pegmatite 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 Pegmatite Origin and Discoverer

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

Etymology of Chalk and Pegmatite

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

For Chalk,

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

For Pegmatite,

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