Quartz vs. Granite Surfaces: How to Spot the Difference
By Fred Hueston
In the world of stone restoration, knowing what you’re working with is key—especially when it comes to distinguishing between quartz surfaces and natural stone like granite. Here’s a handy guide for the stone restoration pro who needs to separate the real deal from the engineered look-alike:
1. Examine the Pattern
Quartz surfaces are engineered with consistent, repeating patterns that look uniform from slab to slab. Modern quartz manufacturers can replicate the look of granite or marble quite well, but often the veining or speckles appear too uniform or predictable. Real granite, on the other hand, boasts natural, irregular patterns, unique mineral streaks, and color variations that make every slab one-of-a-kind.
2. Check the Edges and Cutouts
Take a close look at the edges and any cutouts (like around sinks). Quartz, made from ground quartz and resin, typically has a uniform look even at the edges. Granite often reveals small pits or tiny fissures, telling signs of its natural formation that can’t be perfectly replicated in a factory.
3. Feel the Texture
Run your hand across the surface. Quartz feels smooth and consistent throughout. Granite, by nature, might have a slight roughness or small natural imperfections you can feel—an unevenness that signals authenticity.
4. Inspect the Surface Gloss
While both surfaces can be polished to a high sheen, quartz tends to have a consistent, even polish. Granite’s gloss may vary, catching light differently in different mineral areas or showing tiny pits that give it character.
5. Peek at the Underside
If you can, check the underside of the countertop. Quartz often shows a uniform composition or even a manufactured label. Natural granite usually reveals a rough, uneven texture with clear mineral deposits.
6. Consider Staining and Etching
Quartz is more resistant to staining and generally won’t etch from acids, thanks to its resin binders. Granite, especially when not properly sealed, can be more susceptible to etching and staining—something to consider during restoration work.
Being able to spot the difference between quartz and granite helps you choose the right restoration approach, cleaning chemistry, and finishing technique. A quick inspection using these tips can save you time—and make you look like the pro you are.
