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| Honed finishes can be produced using a range of grits. The coarsest grit will give a pale blue-grey colour and the finest a dark blue-grey to black. There will be subtle variations between different beds in any quarry. Most quarries have a limited number of beds that yield an even colour but where crinoids are present they will show as well defined surface mottling. Shell beds honed with a fine grit are often black with a spectacular white contrast provided by the brachiopods. The surface produced by the coarser grits is smooth and matt with a faint pattern of circular scores. Finer grits produce a smooth matt texture with no obvious tool marks. |
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