Palestone

Description: Plainsman Native Clay

Oxide	Analysis	Formula
BaO	0.32%	0.01
CaO	0.22%	0.02
K2O	2.32%	0.15
MgO	0.56%	0.08
Na2O	0.14%	0.01
TiO2	0.65%	0.05
Al2O3	17.20%	1.00
P2O5	0.15%	0.01
SiO2	70.43%	6.95
Fe2O3	1.30%	0.05
MnO	0.01%	-
LOI	6.70%	n/a
Oxide Weight		553.29
Formula Weight		593.02

Notes

A pale firing stoneware with good plasticity and suitable for making up the major part of a mix. It develops maturity in the cone 8-11 range and is fine grained and strong. This is material is balanced enough to use by itself.

Fired Temperature, Cone 6 7 8 9 10 11 10R
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Fired Shrinkage: 4.4% 4.6% 4.8% 5.1% 5.4% n/a n/a
Absorption: 3.8% 3.2% 2.6% 2.0% 1.0% n/a n/a
Fired Strength:
(lbs/ square inch) 5800 6200 6700 7100 7100

Sieve Analysis Wet Washed
(Root of 2 series) +35 +48 +65 +100 +150# +200 +325
--------------------------------------------
0.1% 0.3% 1.9% 6.3% 9.1% 13.6% 21.5%

Texture: Sl. tooth
Plastic Index (1-10): 6
Green Strength (lbs/sqaure inch): 950
Dry shrinkage: 6.0
Dried density: 2.04
PCE: 21.5

Related Information

Links

URLs	https://plainsmanclays.com/data/index.php?product=12900 Palestone Data Sheet
Typecodes	Clay Other Clays that are not kaolins, ball clays or bentonites. For example, stoneware clays are mixtures of all of the above plus quartz, feldspar, mica and other minerals. There are also many clays that have high plasticity like bentonite but are much different mineralogically.

Data

Frit Softening Point	PCE 22

By Tony Hansen
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