Sheffield Clay

Alternate Names: Shefield Clay

Description: Iron-rich native glacial clay

Oxide	Analysis	Formula
CaO	3.20%	0.28
K2O	4.00%	0.21
MgO	3.50%	0.42
Na2O	1.20%	0.09
TiO2	1.00%	0.06
Al2O3	19.60%	0.93
SiO2	51.02%	4.13
Fe2O3	8.50%	0.26
LOI	8.00%	n/a
Oxide Weight		447.33
Formula Weight		486.23

Notes

A native glacial iron-rich clay containing biotite, hornblende, chlorite, quartz, and other high Fe/Mg minerals. Sheffield Slip clay is based on this material.

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.
Materials	Sheffield Slip

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