Interesting Facts About Quartzite

Quartzite is a hard, smooth rock becoming more popular in the construction industry.
••• construction in progress image by Colin Buckland from Fotolia.com

Quartzite is a metamorphic, or changed, rock. Changes in rocks are a slow process resulting in an altered appearance and form as a result of different conditions. Temperature, pressure and chemically changed environments are the usual catalysts of change in metamorphic rock.

Background

Quartzite is originally sandstone that undergoes metamorphism via intense heat and pressure. The quartz grains are highly compacted resulting in a dense rock. Quartzite has a high degree of quartz -- 90 percent or more -- and is the most concentrated, purest form of silica found on Earth. They tend to form when continents collide with each other to create mountains.

Features

Quartzite is usually snowy white and occasionally pink or gray. Dark colors are rare. The structure is smooth and hard-wearing with a granular appearance and tends to be seen in hill or mountain ranges, or on rocky coastlines. They have a glassy luster due to the quartz content.

Uses

Quartzite is used for making bricks and other strong building materials. It is also growing in popularity as a decorative stone and has a limited use as crushed stone. As it is so hard, quartzite is not quarried as much as softer stone and tends to be taken from the surface rather than underground. Less than 6 percent of all crushed stone produced in the United States is quartzite.

Related Articles

Two Types of Hydrothermal Deposits
What Is Snowflake Obsidian?
Difference Between Quartzite & Granite
Three Types of Rocks That Form When Lava Cools
List of Igneous Rocks That Do Not Contain Quartz
What Are the Three Most Common Cementing Agents for...
Difference Between Quartz & Calcite
How to Identify Basalt
The Difference Between Metaconglomerate & Conglomerate
The Characteristics of Slate
Stones Found in Arizona
How Is Tourmaline Formed?
Types of Intrusive Igneous Rock With Large Crystals
What is Silicon Dioxide?
What Is the Difference Between Sandstone & Limestone?
Most Common Types of Igneous Rocks
What Do Raw Rubies Look Like?
Three Major Types of Meteorites
How Do Rubies Form?
Difference Between Quartzite & Granite

Dont Go!

We Have More Great Sciencing Articles!