Nina Jones on wed 16 feb 00
Hello, hello!
Was wondering if anyone has the chemical breakdown of Cedar Heights
Salt Lick. Is it a substitute for Goldart, and, if so, how close is it?
Anyone use it before? Is it higher or lower in sulfur content?
Just curious.
Thank you,
Nina D. Jones
Southside Chicago
@ njones@winston.com
Stephen Grimmer on thu 17 feb 00
Nina,
From the Resco Website:
Cedar Heights Clay Data
The following data is representative of these clay products. Because
these are naturally occurring materials, some variation is expected. This
information should only be used as a guide for selecting a clay.
REDART GOLDART ROSEVILLE SALT LICK
CHEMISTRY
Al2O3 16.4 27.3 23.4 23.7
SiO2 64.2 56.7 60.8 62.4
Fe2O3 7.0 1.4 2.1 1.6
TiO2 1.1 1.8 1.7 1.5
MgO 1.6 0.4 0.2 0.5
CaO 0.2 0.2 0.4 0.2
Na2O 0.4 0.2 0.3 0.1
K2O 4.1 1.9 2.5 3.0
Other 0.1 0.1 0.1 -
LOI 4.9 10.0 8.5 7.0
BOND(psi) 6.0 9.0 7.0 7.0
Fired brick light yellow dark
Color red buff buff buff
P.C.E. 13 27.3 23 23
The key information is the PCE, or Pyrometric Cone Equivalent. The Salt Lick
is more highly fluxed than the Goldart. How much difference this will make
in your clay, I can't say. Also note the lower LOI (loss on ignition). That
may indicate lower sulfur.
--
Steve Grimmer
Bowling Green State University
Bowling Green, OH
----------
>From: Nina Jones
>To: CLAYART@LSV.UKY.EDU
>Subject: Cedar Heights Salt Lick?
>Date: Wed, Feb 16, 2000, 6:53 PM
>
> ----------------------------Original message----------------------------
> Hello, hello!
>
> Was wondering if anyone has the chemical breakdown of Cedar Heights
> Salt Lick. Is it a substitute for Goldart, and, if so, how close is it?
> Anyone use it before? Is it higher or lower in sulfur content?
>
> Just curious.
>
> Thank you,
> Nina D. Jones
> Southside Chicago
> @ njones@winston.com
Kenneth D. Westfall on thu 17 feb 00
You can find more info about Cedar Heights clays at
http://www.zoomnet.net/~cdrhgts/index.html
the comparison in on page
http://www.zoomnet.net/~cdrhgts/page5.html
At 07:53 PM 02/16/2000 EST, you wrote:
>----------------------------Original message----------------------------
>Hello, hello!
>
>Was wondering if anyone has the chemical breakdown of Cedar Heights
>Salt Lick. Is it a substitute for Goldart, and, if so, how close is it?
> Anyone use it before? Is it higher or lower in sulfur content?
>
>Just curious.
>
>Thank you,
>Nina D. Jones
>Southside Chicago
>@ njones@winston.com
>
Kenneth D. Westfall
Pine Hill Pottery
R.D. #2 Box 6AA
Harrisville, WV 26362
pinehill@ruralnet.org
http://www.ruralnet.org/pinehillpottery
| |
|
