Kathy on wed 30 oct 02
I've read that glazes with more than 15% rutile are
photrophic (darken when brightly lit.) How bizzare and
wonderful. Does anyone know how or why this happens?
Thanks in advance,
Kathy
Brooks Ratledge on thu 31 oct 02
I have used an iron red years ago that had rutile in it that was
phototropic. The first piece was a plate and would get darker/lighter
depending on the light. I thought I was going nuts since I didn't know
glazes could react that way. I covered part of the plate and discovered I
wasn't dreaming. It did change. Patricia Harden
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-----Original Message-----
From: Kathy
To: CLAYART@LSV.CERAMICS.ORG
Date: Thursday, October 31, 2002 7:56 AM
Subject: Re: rutile blue glazes, phototrophy?
>I've read that glazes with more than 15% rutile are
>photrophic (darken when brightly lit.) How bizzare and
>wonderful. Does anyone know how or why this happens?
>Thanks in advance,
>Kathy
>
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