ooops I keep getting it wrong sorry Think I'll keep quiet now! Gill --- Original Message ----- From: "Loudene Tollar" <ludiekt@juno.com> To: "Gill Smith" <gilliandavies@lineone.net>; <Scotch-Irish-L@rootsweb.com> Sent: Friday, December 09, 2005 5:47 PM Subject: Re: [Sc-Ir] Ludie question about Limestone > Thank you, Gill > > Actually I know what limestone is. It was just the way Edward used the > term with the puffers that threw me. Limestone has been used in building > for many years in Texas. The San Jacinto Monument is built of Texas > limestone. It was popular in earlier years in central Texas because of > being so readily available. Recently it has had a resurgence of > popularity to the point of being artifically manufactured. Ludie > > > ----- Original Message ----- > From: Gill Smith > To: Scotch-Irish-L@rootsweb.com > Sent: Friday, December 09, 2005 1:21 AM > Subject: [Sc-Ir] Ludie question about Limestone > > > Hello Ludie - 'tis me again > > In reply to your question about limestone > > Limestone rocks are sedimentary( pieces of the earth worn away and > deposited on top of each other to form layers- they eventually form rocks) > rocks that are made from the mineral calcite which came from the beds of > evaporated seas , rivers and lakes and from sea animal shells. This rock > is used in concrete production and is an excellent building stone for > humid regions. > > Limestone is used in architectural construction, but apparently not good > for tall buildings because of the cost?. > > Alot of buildings in London are built from Portland Limestone > > It doesn't stand up well to acid rain > > The Vale of Clwyd - here in Wales has alot of limestone - it is a glacial > valley and you can see lots of little and quite large fossils of marine > creatures in the stone. > I wonder what our ancestors made of the shapes in the limestone. Some > limestone with fossils is used in pre-historic burials as it probaly had a > 'magic' attached to it > > The Burren in Co Clare, Ireland is one of the most famous, composed of > karstic limestone - bhoireann stoney place - it has a wealth of > archaeology, flora on it's (approx) 300 sq. kilometres and is an > archaeologist, botanists and ecologists dream. > > Texas it seems is richly endowed with centuries old limestone buildings > but I don't know anything about these! > > Hope this helps as my geology is a bit rusty > > Gill in a warmer Wales >