Bill Merrill on mon 20 aug 12
? Virginia Kyanite converts to Mullite in a very narrow range of 1250 c =3D
to 1450 c, a temperature much lower than either Andalucite or =3D
Sillimanite.
Sillimanite was/is used to produce kiln shelves that are mostly used in =3D
electric kilns. =3D20
The original Mullite was produced on THe Isle of Mull. Production of =3D
Mullite stopped many years ago. What industry uses now is a Kyanite=3D20
product that is mined in Virginia. =3D20
http://www.kyanite.com/mullite.html =3D
?
Ben Morrison on mon 20 aug 12
-Ben
_____=3D
Interesting stuff Bill Merrill. Thanks for posting.=3D0A=3D0A-Ben=3D0A=3D0A=
=3D0A_____=3D
___________________________=3D0A From: Bill Merrill =
=3D0AT=3D
o: Clayart@LSV.CERAMICS.ORG =3D0ASent: Monday, August 20, 2012 10:51 AM=3D0=
ASub=3D
ject: Kyanite/Mullite=3D0A =3D0A? Virginia Kyanite converts to Mullite in a=
ver=3D
y narrow range of 1250 c to 1450 c,=3DA0 a temperature much lower than eith=
er=3D
Andalucite or Sillimanite.=3D0A=3D0ASillimanite was/is used to produce kil=
n sh=3D
elves that are mostly used in electric kilns.=3DA0 =3DA0 =3D0A=3D0AThe orig=
inal Mul=3D
lite was produced on THe Isle of Mull.=3DA0 Production of Mullite stopped m=
an=3D
y years ago.=3DA0 What industry uses now is a Kyanite =3D0A=3D0Aproduct tha=
t is m=3D
ined in Virginia.=3DA0 =3D0A=3D0Ahttp://www.kyanite.com/mullite.html //www.=3D
kyanite.com/mullite.html> ?
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