Quartzite

Quartzite is a metamorphic rock primarily composed of quartz, with a high degree of hardness. It forms from the metamorphism of quartz-rich sandstones under high pressure and temperature conditions, which causes the individual quartz grains to recrystallize and fuse together. The result is a dense, durable rock that is highly resistant to weathering.

The primary mineral in quartzite is quartz, often present in over 90% of the rock's composition. Other minerals, such as feldspar, mica, and iron oxide, may also be present in trace amounts, contributing to variations in color, texture, and overall appearance. The color of quartzite typically ranges from white to gray, but it can __________ ________ ____ _______ ________ _____ ________ ______ _____ _________.
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