Dolomite is the countertop world's best-kept secret — a natural stone that looks like marble but wears tougher. Here is what it is, how it performs and how to keep it looking its best.
What Exactly Is Dolomite?
Dolomite is a natural stone made largely of the mineral dolomite (calcium magnesium carbonate). In the countertop world it sits between marble and quartzite: harder and more durable than marble, but softer and more etch-prone than true quartzite. That middle ground is exactly why designers love it.
Popular varieties like Super White and Fantasy Brown are technically dolomite, even though they are often marketed loosely as “quartzite” or “marble.” Always confirm what you are actually buying.
The Look: Marble Drama, Calmer Nerves
Dolomite gives you that coveted soft, veined, marble-like appearance — typically white or gray backgrounds with cool gray veining. Super White dolomite in particular delivers an airy, luminous look that brightens kitchens beautifully.
- Soft white-to-gray backgrounds
- Elegant gray, sometimes green-tinged veining
- A calmer, more consistent pattern than many marbles
- Available in polished, honed and leathered finishes
Durability and Care
Because it is harder than marble, dolomite resists scratching and everyday wear better than a classic Calacatta. But it is still a natural, porous calcite-based stone, which means two things: it needs periodic sealing, and it can etch when exposed to acids like citrus, vinegar or wine. A honed finish hides etching better than a high polish.
- Seal on install and reseal periodically — see our sealing guide
- Wipe spills promptly, especially acidic ones
- Use cutting boards and trivets
- Clean with pH-neutral cleaners, never harsh acids
Is Dolomite Right for Your Kitchen?
Dolomite is a great fit if you are drawn to the softness of marble but want something a bit tougher, and you are comfortable with light maintenance. If you want zero sealing and full etch resistance, a veined quartz is the lower-maintenance route; if you want maximum hardness, look at quartzite. In humid South Florida homes, dolomite performs fine indoors, but avoid uncovered outdoor installs where sun and weather are harsh.
For many of our Broward and Palm Beach clients, dolomite hits the sweet spot: real natural stone, marble beauty, better everyday resilience.
Dolomite vs. Marble vs. Quartzite at a Glance
It helps to picture a spectrum of hardness and etch resistance. Marble is the softest and most etch-prone, quartzite is the hardest and most etch-resistant, and dolomite sits comfortably in the middle. That is the whole appeal: you trade a little of marble's fragility for extra everyday toughness, without paying full quartzite prices.
- Marble: softest, most etch-prone, most affordable of the three
- Dolomite: harder than marble, still needs sealing, can etch
- Quartzite: hardest and most etch-resistant, typically priciest
- All three are natural stone and require periodic sealing
Curious About Dolomite?
Come see Super White and other dolomite slabs in person at our Fort Lauderdale showroom — contact us for a per-job quote.
Request a Quote See our natural stone optionsFrequently asked
Is dolomite the same as quartzite?
No. True quartzite is harder and more etch-resistant. Dolomite is softer and, being calcite-based, can etch from acids. Some stones sold as quartzite are actually dolomite, so ask for verification before buying.
Does dolomite need to be sealed?
Yes. Dolomite is porous and should be sealed on installation and resealed periodically to guard against staining. Sealing does not prevent etching, however.
Will dolomite etch like marble?
It can. Acidic foods and drinks can leave dull etch marks. A honed finish disguises etching better than a polished one, and prompt cleanup helps.