http://www.helium.com/debates/138663-using-stones-in-landscaping-are-man-made-or-natural-stones-better.xml New Debate articles at Helium for Using stones in landscaping: Are man-made or natural stones better? en-us Copyright Helium.com Mon, 05 May 2008 19:39:55 GMT Mon, 05 May 2008 19:39:55 GMT