| 词条 | Portland Grove Whitbed |
| 释义 |
Portland Grove Whitbed is a type of stone from the Isle of Portland used to construct the "New London Stock Exchange", which is situated in Paternoster Square, in the city of London.[1] The stone contains large, white shell fragments, and large grey shells. Grove Whitbed has a maximum bed height of 2.2 metres and is the most creamy-whiteish of all the Portland stone types. References1. ^{{Cite web|url=http://www.albionstone.com|title=Portland stone supplier {{!}} Portland stone quarry {{!}} Portland stone mine{{!}} Albion Stone|website=www.albionstone.com|access-date=2016-06-29}} {{Geology-stub}} 4 : Limestone|Isle of Portland|Quarrying in the United Kingdom|Jurassic Coast |
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