Hardness and Durability: The only stone harder than Quartzite is diamonds, quartzite is harder than quartz or granite, making it quite durable. It withstands heat very well. While quartz is hard as well, it is not quite as hard as quartzite.

…there are multiple kinds of rocks used for construction. Many of them have a specific purpose for their use in construction, and if you know what to look for, you'll start seeing these rocks in their different applications.