Granite vs Marble: What's the Difference?

Granite and marble are both natural stones, but they sit far apart in hardness and behavior. Granite is a hard igneous stone that resists scratching and etching; marble is a softer metamorphic stone prized for veining but prone to etching from acids.

How They Form

Granite crystallizes from magma that cools slowly underground, producing its visible mineral grains. Marble forms when limestone is transformed by heat and pressure, producing its characteristic recrystallized structure and veining. Different origins produce different strengths and weaknesses.

Hardness and Etching

Granite is harder and resists both scratching and acid etching. Marble is softer and, as a calcium-carbonate stone, etches when acids touch it. This is the single most important practical difference: granite tolerates a busy kitchen's acids, while marble shows their marks.

Appearance

Granite's look is granular and speckled, with visible crystals in a wide range of colors. Marble's look is veined and flowing, usually lighter in tone. If you want movement and drama, marble delivers it; if you want busy, varied color, granite does.

Which Should You Choose?

Choose granite if durability, heat tolerance, and acid resistance are priorities. Choose marble if the classic veined look is the priority and you accept etching and scratching as part of the material's character. Both are natural, and both vary from slab to slab.