True quartzite forms when sandstone is transformed by heat and pressure. It is generally harder and more heat resistant than marble. Natural fissures, veins, color changes, and mineral inclusions are expected. Some slabs may be more absorbent than others. Trade names can be confusing, and some materials sold as quartzite may contain calcite or behave like marble around acids. Homeowners should inspect the slab and discuss testing, sealing, seam placement, and finish with the fabricator.
Key considerations
- heat resistance
- scratch resistance
- stain resistance
- natural veining
- unique slabs
- multiple finishes