Lesson plan
Carrstone
Carrstone (or carstone, also known as Silsoe, heathstone, ironstone, honeystone or gingerbread) is a sedimentary sandstone conglomerate formed during the Cretaceous period. It varies in colour from light to dark rusty ginger. Used as a building stone it can be found in Bedfordshire, Cambridgeshire and extensively in the historic buildings of northwest Norfolk. Carrstone can vary in quality depending on factors such as the degree of iron oxide present, and sufficient pressure to form the matrix. Carrstone can also phase into puddingstone, ferricrete and silver carr. Because of its variations it does not lend itself to carving or finer work. Carrstonework can be seen in forms such as: random carrstone, coursed carrstone, ashlared carrstone, all with, or without, galleting. Other patterns of use are: rough carrstone sipps (slips, shale or brickettes) and cut carrstone sipps, both used in masonry fields between brickwork quoins. Cut carrstone sipps or shales are used extensively at Sandringham House on the main building and the stables block. Other examples of carrstone work can be found on St Mary's Church, Barton Bendish as well as many other parish churches in the region. Hunstanton and Wolferton feature some interesting examples along with the 'Gingerbread Town' of Downham Market, notably the Grade II listed Downham Market railway station.…
Article summary
Carrstone (or carstone, also known as Silsoe, heathstone, ironstone, honeystone or gingerbread) is a sedimentary sandstone conglomerate formed during the Cretaceous period. It varies in colour from light to dark rusty ginger. Used as a building stone it can be found in Bedfordshire, Cambridgeshire and extensively in the historic buildings of northwest Norfolk. Carrstone can vary in quality depending on factors such as the degree of iron oxide present, and sufficient pressure to form the matrix. Carrstone can also phase into puddingstone, ferricrete and silver carr. Because of its variations it does not lend itself to carving or finer work. Carrstonework can be seen in forms such as: random carrstone, coursed carrstone, ashlared carrstone, all with, or without, galleting. Other patterns of use are: rough carrstone sipps (slips, shale or brickettes) and cut carrstone sipps, both used in masonry fields between brickwork quoins. Cut carrstone sipps or shales are used extensively at Sandringham House on the main building and the stables block. Other examples of carrstone work can be found on St Mary's Church, Barton Bendish as well as many other parish churches in the region. Hunstanton and Wolferton feature some interesting examples along with the 'Gingerbread Town' of Downham Market, notably the Grade II listed Downham Market railway station.…
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
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