Dimension Stone (Building Stone) in Newfoundland and Labrador

www.heritage.nf.ca/environment/dimension.html

Dimension Stone in Newfoundland and Labrador

www.nr.gov.nl.ca/mines&en/geosurvey/dimension/dimension.stm

Building Stone of the United States

stonewall.nist.gov/

Wikipedia - Repointing

en.wikipedia.org/wiki/Repointing

National Concrete Masonry Association

www.ncma.org/

Union Gas

www.uniongas.com/home/inserts/channelinserts/2006Inserts/fireplaceS1006.asp

Build Direct - Frequently Asked Questions

www.builddirect.com/Porcelain-Tile/FAQ_6933.aspx

Regency Fireplace Products

www.regency-fire.com/