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

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