Rocks: Types and Uses

ROCKS: TYPES AND USES

Rocks: types and uses, are incredible! For millions of years, rocks have molded the earth’s diverse landscapes. They are amazing natural formations. There are many different kinds of them on the planet, and each has special qualities and applications. Rocks are aggregates of minerals that combine the characteristics of all the individual minerals.

ROCKS: TYPES AND USES

Also, Rock types can be defined by any distinct combination of mineralogy, texture, grain size, chemical composition, and other defining traits. Additionally, each main variety of rock has its own classification system. In nature, rocks come in a variety of forms. Natural rocks rarely display such basic traits; instead, they typically display a range of attributes that vary with the scale of measurement.

Types

1. Rock Igneous

Although, One of the three primary types of rocks is  Igneous rock. When lava or magma cools and solidifies, igneous rock is created. Igneous rocks can form on the surface as extrusive rocks or below as intrusive rocks, with or without crystallization. Partial melts of preexisting rocks in a planet’s crust or mantle can produce this magma.

2. Rock that is sedimentary

However, The deposition and subsequent cementation of that material at the earth’s surface and in bodies of water creates  Sedimentary Rocks. Sedimentation is the process by which different organic compounds and minerals settle in a location. Sediment is the term for the particles that build up to form a sedimentary rock. The agents of denudation—water, wind, ice, mass movement, or glaciers—carried the sediment to the location of deposition after it had been created by weathering and erosion from the source area.

Types

1. Also, Clastic sedimentary rocks: Debris from mechanical weathering forms these rocks. Clastic sedimentary rocks include siltstone and sandstone.

2. Meanwhile, Chemical sedimentary rocks: The dissolved materials that separate from the solution to produce these rocks. Chemical sedimentary rocks include limestones and iron ore.

3. However, Organic sedimentary rocks: Debris from plants and animals builds up to form these rocks. Examples of biological sedimentary rocks are coal and certain types of dolomite.

3. Rocks That Have Undergone Metamorphism

However, Metamorphic rocks, which comprise a significant portion of the Earth’s crust, are categorized based on their texture as well as their chemical and mineral composition. The fact that they are located far below the surface of the Earth and are exposed to extreme temperatures and the intense pressure of the rock layers above it may be enough to develop them. In a process known as metamorphism, or “change in form,” preexisting rock types undergo metamorphosis to produce metamorphic rocks. Major physical and/or chemical changes are brought about by heating the original rock to temperatures above 150 to 200°C and applying pressure of about 1500 bars.

Types

1. Also, Foliated metamorphic rocks: These rocks have a layered appearance due to their exposure to heat and pressure. Examples of foliated metamorphic rocks are gneiss and phyllite.

2. Meanwhile, Metamorphic rocks that lack layers are known as non-foliated rocks. Examples of non-foliated metamorphic rocks are quartzite and marble.

Summary

Hence, Aggregates of geological material known as minerals that occur naturally are referred to as rocks. The Earth’s surface is covered in rocks, and while they may all appear to be similar at first glance, different kinds of rocks have quite distinct histories.