Choosing stone
Quartzite vs. granite: cost, care, and which one to choose.
Quartzite and granite are the two natural stones people confuse most, and the two we cut most often in the same week. Both are quarried, both are sliced into slabs, both go into kitchens that get used hard. They are still different stones, and the differences decide how much you pay, how you look after the counter, and how it ages. Here is the comparison in plain terms, including the question everyone asks first.
The short version
- Look. Quartzite tends toward soft, flowing veins that read like marble. Granite tends toward speckles and crystals, with more pattern in a small area.
- Hardness. Quartzite is the harder of the two. Both resist scratches better than any everyday use will test.
- Heat. Both take a hot pan.
- Etching. Neither etches from lemon juice or vinegar, as long as the quartzite is a real quartzite. More on that below, because it matters.
- Sealing. Both are sealed before they leave our shop and resealed every year or two, depending on the stone.
- Cost. Quartzite usually costs more for a comparable job. Sometimes much more.
Where each one comes from
Quartzite starts as sandstone. Heat and pressure deep underground fuse the sand grains into a dense mass of quartz crystal, which is why it is so hard and why the color often moves in waves, the way the original sand was laid down. Most of the quartzite in our racks, including Taj Mahal, Mont Blanc, and Cristallo, comes from Brazil.
Granite is igneous. It cooled slowly from molten rock, and as it cooled, separate minerals grew into separate crystals: feldspar, quartz, mica, sometimes a little of everything. That is the speckled look. Granite is quarried all over the world, which is part of why there is so much of it and why it stays the value pick.
The look is not a hard rule. Some granites have real movement, like Titanium and Viscont White, and some quartzites are busy. Stand in front of the slab rather than the name.
Hardness and scratches
Geologists rate mineral hardness on the Mohs scale. Quartz, the mineral quartzite is made of, sits at 7. The feldspar that makes up most of a granite sits around 6, with quartz crystals mixed in. So quartzite is the harder stone, and it is the one that will scratch glass, which is one of the tests the Natural Stone Institute recommends for telling a true quartzite from an imposter.
In a kitchen, the difference is smaller than the numbers suggest. A steel knife is softer than either stone. Neither will scratch from pots, keys, or a dropped can. Use a cutting board anyway, for the knife's sake and the sealer's, not because the stone is fragile.
Heat
Both are born of heat and both handle it. A pan straight off the burner will not mark quartzite or granite the way it marks quartz or laminate. We still suggest a trivet as a habit, because the thing most at risk is not the stone, it is the sealer and any seam nearby, and a trivet costs nothing.
Etching, and the “soft quartzite” problem
Etching is the dull spot an acid leaves on marble. Lemon, wine, tomato, vinegar. Granite does not etch. True quartzite does not etch either. That is the whole reason quartzite has become the stone for people who want marble's look in a kitchen that actually gets cooked in.
The catch is that not everything sold as quartzite is quartzite. Some slabs in the trade are marble or dolomite that happen to look like quartzite and get labeled as “soft quartzite.” The Natural Stone Institute's geologists are blunt about it: there is no such thing as soft quartzite. A stone that etches is a marble, whatever the tag says. Put one in a kitchen expecting quartzite behavior and you will get marble behavior.
How to know: a true quartzite scratches glass and shrugs off a drop of lemon juice left on it for ten minutes. We import our stone directly and we will do both tests on a sample in front of you, because we would rather you know what you are buying while you are still standing in the yard.
Sealing and day-to-day care
Both stones are porous to some degree, and porosity varies slab to slab. Lighter granites tend to be more porous than dark ones. Quartzites run the full range: some are dense enough that water beads on them for a long time, and others drink it in and need a sealer to stay stain-free.
We seal every natural stone before installation. After that, granite typically wants resealing every one to two years, and most quartzites about once a year. The test is simple: leave a few drops of water on the counter for ten minutes. If the stone darkens, it is time. Day to day, mild soap and water is all either stone needs. Skip the abrasive powders and the bleach.
Is quartzite more expensive than granite?
Usually, yes. For a comparable kitchen, expect quartzite to run roughly 25 to 50 percent more than granite once fabrication and installation are counted, and rare slabs can go well past that. Three things drive the premium. Quartzite is scarcer, and most of it comes from a handful of quarries. It is harder, so it is slower to cut, edge, and polish and harder on the tooling. And because people buy it for the veining, a quartzite job often uses more of each slab to make the pattern flow across an island or line up at a seam.
On either stone, the same things move the price:
- The slab itself. Common colors sit at the low end of each stone. Exotic imports and rare veining sit at the top, and an exotic granite can cost more than a common quartzite.
- Thickness. 3cm stock stands on its own. 2cm is lighter and usually less, but it often wants a built-up edge or extra support.
- Edge profile. An eased edge is quick. A mitered or specialty edge is fabrication time.
- Cutouts and layout. Sink and cooktop cutouts, waterfall ends, full-height backsplashes, and how many slabs the layout needs.
Granite remains one of the most durable surfaces you can buy for what it costs. Quartzite is the upgrade: marble's elegance with better everyday toughness, priced accordingly. Both add real resale appeal. For an honest number, request a free estimate or bring your measurements to the yard. Slab prices vary enough that a quote drawn for your kitchen beats any internet average.
Where each one shines
- Quartzite: kitchens where you want the marble look without marble's care, big islands where the veining can run, and fireplace surrounds. The Magnolia and Fuchsite Crystal kitchens in our gallery are good examples of what the stone can do.
- Granite: everyday family kitchens, vanities, and anything outdoors. Granite has a long track record in outdoor kitchens through Connecticut winters, and a leathered or honed finish hides fingerprints and water spots better than a polish.
How to decide in the yard
Come see full slabs in daylight, not samples under showroom lights. Bring a cabinet door or a paint chip. Ask to see the slab you would actually get, not a category, because two slabs of the same named stone can look like different stones. Ask whether a quartzite is a true quartzite, and watch it get tested. And ask where the seams would fall; we wrote about that in what happens between picking your slab and installing it.
We have imported, fabricated, and installed both stones out of the same Hartford shop since 1978. Walk the slab yard at 97 Airport Road, or tell us about the project and we will help you choose.