From:
Walter Arnold <walter@xxxxxxxxxxxxxxx>
Date:
Thu, 26 Aug 1999 08:09:11 -0500
Subject:
green marble is serpentine (WAS Compounds of stone)
At 11:30 PM 8/25/99 +0200, Christian Schneider wrote:
Quoted text begins.marble = CaCO3
It is a kind of limestone that was transformed by heat
and pressure (of overlaying rocks)
serpentine = Mg3[(OH)4/Si2O3]
it belongs to the group of silicates
End of quote.
And I'd like to add something that very few people in
the marble industry or sculpting world are aware of.
Almost all (and I've heard some experts debate whether
all) green marble is serpentine, not marble. It is
marketed and classified commercially as marble, but it
is serpentine. So, keep that in mind and use dust masks
if you work with it. Also be aware that U.S. customs
duties are higher on serpentine than on marble.
Walter S. Arnold * walter@xxxxxxxxxxxxxxx
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- message 00634: Supplier of Serpentine from Pakistan - Faisal Ilyas (14 Oct 2000)
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