Talk:London stock brick

Originated in Stock?
I live in Stock, Essex and there's a belief that "Stock Bricks" originated here; bricks were certainly made here - I'll try and find a citation for the claim.

Apepper 12:30, 3 August 2007 (UTC)
 * Stock comes from it being the standard or common brick for the area rather than from a location. The Penguin Dictionary of Building defines Stock Brick as:
 * "The brick which is most commonly available in any district is the stock brick of the district. The former London stock brick (a yellow Kentish brick which blackens with age in towns) has become so well know that it is now generally referred to in the south of England as a stock brick, or stock, but is no longer the commonest London Brick."
 * --DavidCane (talk) 21:44, 8 July 2008 (UTC)

Chalk added to clay?
According to this source http://www.kurg.org.uk/sites/chalkmines.htm the distinctive yellowish colour of the bricks comes from adding about 15% of chalk to the clay. I have no idea if this is true, but it is common to add some other ingredients, such as sand, to brick-making clay.109.158.42.200 (talk) 14:27, 9 October 2012 (UTC)
 * See:Frindsbury where it states: The bricks were Yellow Stock bricks, the colour produced by adding up to 17% chalk to the clay. The brick were graded as Firsts, Seconds (used for facings), Thirds (used for internals), Roughs (used for hardcore) and Chuffs that were unusable. This referenced to the article below ClemRutter (talk) 09:11, 17 May 2018 (UTC)

Accuracy!
A very good account of the brickfields is published in . Of the three references I checked in this article- two were neighbourhood groups who had just chosen a brick related name for their sites, and the third was a dead link. There is room for improvement here. ClemRutter (talk) 09:11, 17 May 2018 (UTC)

Also useful is the American site: .ClemRutter (talk) 09:17, 17 May 2018 (UTC)