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The world's biggest consumer of slate is France, followed by the UK, USA and Germany. In 2012, Spain produced more than 580,000 tonnes (570,000 long tons; 640,000 short tons) of slate worth about $380 million. This made it the largest slate producer in the world, followed by China and Brazil. [3]
The slate from the coastal quarries was dressed or split into thin, usable tiles in sheds at the top of the cliffs. A good workman could split 100 dozen roofing slates in a day. Splitters worked 7.30am to 5.30pm with a half hour break. Some rag slates measured 6 ft by 2 ft, some were 18 inches square and sold at 2s.6d a dozen in 1888.
Slate mines are found around the world. 90% of Europe's natural slate used for roofing originates from the Slate Industry in Spain. [1] The major slate mining region in the United Kingdom is the Lake district, with Honister slate mine being the last working slate mine, the only producers of the world famous Westmorland greenslate.
Slate tile covers this entire structure in Germany Tile is a thin modular stone unit, commonly 12 inches (300 mm) square and 3 ⁄ 8 inch (9.5 mm) deep. Other popular sizes are 15 inches (380 mm) square, 18 inches (460 mm) square, and 24 inches (610 mm) square; these will usually be deeper than the 12-inch square.
In Scandinavia shakes, traditionally used only for roofing, are generally smaller than in North America, measuring 13–16 inches (330–410 mm) long, 4–6 inches (100–150 mm) wide and 1 ⁄ 8 inch (3.2 mm) thick, [6] while in Poland and Slovakia they are usually 36 inches (910 mm) long, 4–6 inches (100–150 mm) wide and 1–1.25 inches ...
1.5 miles (2.4 km)-long tramway connecting the Henddol slate quarry via tramways to the Afon Mawddach [7] Fron quarry tramway [6] 1864 1950 2 ft (610 mm) and 3 ft 6 in (1,067 mm) Fron: Quarry connected to the Nantlle Railway and the North Wales Narrow Gauge Railways via separate inclines. Fron-heulog quarry tramway [3] 1854 1913 3 ft 6 in ...
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Wales was by now producing more than half the United Kingdom's output of slate, 26,000 tons out of a total UK production of 45,000 tons in 1793. [26] In July 1794, the government imposed a 20% tax on all slate carried coastwise, which put the Welsh producers at a disadvantage compared to inland producers who could use the canal network to ...