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What Are the Unique Characteristics of Quartzite?

Quartzite is a metamorphic rock derived from sandstone. The conversion of sandstone to quartzite occurs during tectonic compression, a process where heat and pressure beneath the ground increases to form new rocks. Bricks and paving blocks are products made from quartzite. This metamorphic rock has unique characteristics concerning its appearance, color, and texture that make it identifiable.

Appearance
- Quartzite is grainy in appearance.
  
  Quartzite maintains a glassy shine despite its grainy composition. Found on hills and mountains, this metamorphic rock endures little wear or decomposition based on its elevated locations. The Appalachian Mountains are comprised of rock formations containing quartzite.
Color
- This metamorphic rock is available in pink.
  
  The most common color for quartzite is white. However, other colors such as gray, pink, orange, and red have also been discovered. These colors exist because of the various amounts of iron oxide found in each metamorphic rock.
Texture
- Quartz sand grains are a key component to quartzite.
  
  Quartzite is composed of integrated quartz sand grains. These sand grains allow quartzite to have a smooth rather than rough break when split in half. This outcome is due in part to the break penetrating the quartz grains rather than their surrounding exterior.

Rocks & Minerals