slatestone

noun

slatestone

noun

Etymology From slate + stone.

1

slate

  • It [St Pinnock Viaduct] has seven piers of roughly-dressed, coursed slatestone from Westwood quarry. […] Moorswater is another masonry replacement, consisting of seven tapering piers of rock-faced slatestone with eight semi-circular arches with granite long and short voussoirs.2025 March 5, Dr Joseph Brennan, “Remembering Brunel's timber viaducts”, in RAIL, number 1030, page 58:

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