PR#3 D

Description: SANDY TAN-BUFF STONEWARE

Oxide	Analysis	Formula
CaO	0.18%	0.02
K2O	2.60%	0.17
MgO	0.52%	0.08
Na2O	0.11%	0.01
TiO2	0.60%	0.05
Al2O3	16.17%	1.00
P2O5	0.01%	-
SiO2	70.98%	7.45
Fe2O3	1.14%	0.04
MnO	0.01%	-
LOI	6.51%	n/a
Oxide Weight		582.35
Formula Weight		622.90

Notes

Sandy and silty tan burning clean medium fire stoneware mined at Ravenscrag, Sask.

Analysis updated July 97.

539 Ba ppm
37 Sr pmm
23 Y ppm
8 Sc ppm
283 Zr ppm
1 Be ppm
54 V ppm

Related Information

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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.

By Tony Hansen
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