Crusts or rock-faced stone
The stone is sawn mechanically by a gantry stone-block cutting machine, wire saw, or diamond wire for larger elements (rough-hewn blocks), or cut up with a diamond disc blade in the case of smaller elements.
- Colour: Light grey with slight nuances scattered randomly over the entire surface, depending on the type of sawing.
- The sawing leaves traces that appear on the stone’s surfaces in the forms of small (0.1 to 1 mm deep) parallel waves that follow the direction of the sawing by the gantry cutting machine or wire. They are parallel but have a circumferential appearance if the sawing is done by a disc blade.
- Minimum thickness, mechanical: 2 cm
- - Building stones
- - Cladding panels
- - Floor tiles
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