From:
"Walter S. Arnold" <walter@zzzzzzzzzzzzzzz>
Date:
Thu, 16 Feb 2006 18:58:21 -0600
Subject:
porphyry
At 06:35 PM 2/16/2006, abknight@------ wrote:
Quoted text begins.The question of the moment is is porphyry terrazzo?
End of quote.
Terrazzo is crushed stone chips (usually marble) in a binder (usually
a cement; in ancient times it was clay. Nowadays it could also be
resin or polymer).
I've seen the name porphyry applied to a number of different natural
stones, including a very hard red Italian limestone (which gets its
name because it looks like some of the ancient Egyptian stuff) and
the Egyptian porphyry, which is an igneous rock. There are lots of
others using that name; some are geologically like the Egyptian
stone, some aren't.
Walter S. Arnold * walter@---------------
Gallery: http://www.stonecarver.com
Gargoyle postcards: http://www.stonecarver.com/postcard.html
- References
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