Very durable grey granite has been quarried near Aberdeen for more than 300 years, and blocked and dressed paving "setts," kerb and building stones, and monumental and other ornamental work of granite have long been exported from the district to all parts of the world.
1911, “Aberdeen”, in Hugh Chisholm, editor, The Encyclopædia Britannica: A Dictionary of Arts, Sciences, Literature and General Information, 11th edition, volume I, Cambridge, Mass., New York, N.Y.: At the University Press, page 49