Quartzite is a metamorphic rock that is formed from the transformation of sandstone under heat and pressure. The process of transformation involves recrystallization of the sand grains in the sandstone, which fuse together to form a dense, hard rock. The recrystallization process also causes the original minerals in the sandstone to recrystallize, resulting in a range of colors and patterns in the quartzite.

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As a countertop surface, quartzite is highly prized for its durability, resistance to heat and staining, and its natural beauty. It is a popular choice for kitchen and bathroom countertops due to its ability to withstand heavy use and its resistance to scratching and chipping. Quartzite countertops are available in a wide range of colors and patterns, ranging from white and grey to pink, green, and blue, with intricate veining and patterns that add a unique touch to any space. However, it is important to note that quartzite requires regular sealing to maintain its natural beauty and protect it from damage.