 Flax-spinning and jute and combmaking factories also flourished, along with successful foundries and engineering works.Very durable grey granite was quarried at Rubislaw quarry 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.The terraces of the Houses of Parliament and Waterloo Bridge in London were built from Aberdeen granite.