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Neither. Quartzite is metamorphosed quartz sandstone, and is therefore a metamorphic rock.
Quartzite is often referred to as "quartzite rock" or simply "quartzite." It is a metamorphic rock that is composed primarily of quartz grains.
The new rock formed after the recrystallization of quartz sandstone is called quartzite. This process involves the metamorphism of sandstone under high pressure and temperature conditions, resulting in the formation of quartzite, which is a harder and more compact rock than its precursor.
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Quartzite is a metamorphic rock.
Quartzite is crystalline.
Quartzite is metamorphosed sandstone.
It doesn't. Granite is an igneous rock, not metamorphic. However, quartzite is metamorphic and is made from sandstone.
Quartzite can appear in many colors.
Quartzite
Quartzite
The minerals in the sandstones usually recrystallize when it changes into quartzite. Heat must be applied to sandstone to change it into quartzite.