How long does it take for glass to decompose?

ArlingtonVA

Wiki-Answers says one million years in normal conditions. Far less in a landfill. http://wiki.answers.com/Q/Decomposition_of_glass_in_landfills Backed up, at least in terms of a LONG time by this: http://answers.yahoo.com/question/index?qid=20060804115631AAaKCWF Which basically describes glass as stable in the long term. Jul 02 09, 7:42 PM

queproblema

Millions of years. "This devitrification process is very slow, but over millions of years, a glass will form a completely crystalline mass; thus, the occurrence of very old glassy rocks is rare." http://www.britannica.com/EBchecked/topic/160283/devitrification This technical page treats of the conservation of glass artifacts. http://nautarch.tamu.edu/class/anth605/File5.htm Jul 02 09, 7:48 PM

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