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<DIV><FONT face=Arial size=2>So would the prescense of calcium phosphate in
mortar indicate bone?</FONT></DIV>
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<P class=MsoNormal><FONT face="Courier New" size=2><SPAN lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">On May 20, 2008, at 10:38
AM, bernard Ortiz de Montellano wrote:<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">> They are different
subtances, Bone is made from calcium phosphate, <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">> lime in mortar is
calcium hydroxide.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN lang=ES-MX
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN lang=ES-MX
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">>
Bernard<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN lang=ES-MX
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">Limestone and seashells
(the latter used at the Maya ruins at Comalcalco) are calcium carbonate, which
is heated to produce quicklime (calcium oxide). The quicklime is slaked under
water to produce lime mortar (calcium hydroxide). When the mortar sets it
becomes stucco (calcium carbonate again; the cycle is
complete).<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">Saludos,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">David
Wright</SPAN></FONT><FONT face=Arial size=2><SPAN lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p></o:p></SPAN></FONT></P></DIV>
<P>
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