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Answers / Numbers

How hard is Coffee Wood Marble?

About 3 on the Mohs scale, which is the hardness of marble and about the hardness of copper. It will scratch from a coin, it will dull a knife, and it will etch from an acid. None of that is a defect; it is what a marble is.
A close view of a wet polished marble slab showing straight dark brown veins running across a warm grey-brown base in even parallel lines
The polished face of a slab, photographed straight on.
Hands holding a rectangular cut stone sample with a finished edge against the face of a large polished marble slab
The sawn edge of a cut-to-size piece, showing the thickness.

Reference photographs. They show the material and the finish; they are not photographs of goods we made, and the colour on screen is not a colour-match.

The figures, and where each one comes from

Material Approximate Mohs
Talon 9
Quartz 7
Granite 6 to 7
Coffee Wood Marble and other marble about 3
Limestone about 3

Why it behaves the way it does

Hardness is what decides the maintenance regime and nothing else. A stone at Mohs 3 in a corridor loses its polish long before it loses its substance, and the fix is restoring the finish rather than replacing the floor.

What these figures are, and what they are not

The Mohs figure is a geological reference for the material and it is not a wear rating for a floor. We do not hold a wear figure for this stone.

If you are specifying this

We have not published products against this question yet. Send us the process, thickness and quantity and we will quote it against what we can actually form, rather than against a catalogue.

Send a specification Ask for a sample

About 3 on the Mohs scale, which is the hardness of marble and about the hardness of copper. It will scratch from a coin, it will dull a knife, and it will etch from an acid. None of that is a defect; it is what a marble is.

The figures

Material Approximate Mohs
Talon 9
Quartz 7
Granite 6 to 7
Coffee Wood Marble and other marble about 3
Limestone about 3

Why

Hardness is what decides the maintenance regime and nothing else. A stone at Mohs 3 in a corridor loses its polish long before it loses its substance, and the fix is restoring the finish rather than replacing the floor.

What these figures are, and what they are not

The Mohs figure is a geological reference for the material and it is not a wear rating for a floor. We do not hold a wear figure for this stone.

Where this applies on this site