Dolomite is frequently marketed alongside marble, and the two can look nearly identical to the untrained eye — similar veining, similar color ranges, similar polish potential. But dolomite is a distinct mineral, and the hardness difference between the two has real consequences for care and restoration.
The Key Hardness Difference
Dolomite is generally harder and less reactive to acid than true calcite-based marble, which means it resists etching somewhat better in everyday kitchen use. This is part of why some quarries and suppliers market certain dolomite slabs as marble — the look is similar, but the practical durability differs.
Why Correct Identification Matters
Because dolomite is harder, it can require different honing grit sequences and slightly different polishing times than true marble to achieve the same finish. Treating dolomite exactly like standard marble during restoration can result in an inconsistent or incomplete polish, since the stone responds differently to the same abrasive steps.
Restoring Dolomite Surfaces
Despite the hardness difference, dolomite still requires professional restoration once it dulls or scratches — its increased durability slows wear but does not eliminate it. Diamond Stone Restoration identifies the specific stone before beginning honing and polishing work to ensure the right process is used from the start.