Quartzite is a very hard metamorphic rock that originated as sandstone. 
Through a process of high heating and pressurization, sandstone is transformed into Quartzite, an extremely strong and durable natural stone. When heated, individual quartz pieces recrystallize giving it a beautiful and decorative sparkling pattern. Quartzite is ideal for any countertop surface due to its strength and long-lasting composition. Consider quartzite countertops for its strength, beauty, and overall durability.
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Granite and quartzite have very similar performance statistics. Quartzite is generally harder and denser and the pattern is more like marble which is appealing to many homeowners. Supply and demand have driven the price of quartzite up, so expect to pay a little more and have fewer color options than with granite.
https://usenaturalstone.org › granite-vs-quartzite