How does quartz sandstone form?

Pure quartz sandstones, especially when abundant, form in areas of great tectonic stability. This is because if any clastic sourcelands are available they will weather to produce at least shales, and possibly feldspars and lithics. Quartz sandstones are often associated with carbonate rocks. read more

The question asks for quartz sandstone. I assume that it means quartz-rich sandstone that geologists call quartz-wacke or quartzarenite. The mineral quartz makes up 95% of the grains in such rocks. read more

Quartz is typically the most abundant type of sand grain present in sandstone. It is extremely abundant in source materials and is extremely durable during transport. Rock & Mineral Kits: Get a rock, mineral, or fossil kit to learn more about Earth materials. read more