Nepheline Syenite Norwegian

Alternate Names: North Cape Nepheline Syenite, Spectrum N500

Description: Norwegian Nepheline Syenite

Oxide	Analysis	Formula
K2O	8.80%	0.41
SiO2	57.20%	4.22
Al2O3	24.40%	1.06
Na2O	8.20%	0.59
Fe2O3	0.10%	-
TiO2	0.10%	0.01
LOI	1.00%	n/a
Oxide Weight		437.80
Formula Weight		442.22

Notes

North Cape nepheline syenite is produced in the north of Norway, near the Alta fjord within the Arctic circle. This has a much higher K₂O (and lower Na₂O) than the Canadian material.

The analysis on the Sibelco data page likely has an error in the SiO₂, we have changed it from 53.2 to 57.2.

Related Information

Links

Materials	Feldspar In ceramics, feldspars are used in glazes and clay bodies. They vitrify stonewares and porcelains. They supply KNaO flux to glazes to help them melt.
Materials	Nepheline Syenite
Typecodes	Feldspar The most common source of fluxes for high and medium temperature glazes and bodies.
Typecodes	Materials used in Denmark
Hazards	Feldspar Feldspars are abundant and varied in nature. They contain small amounts of quartz (while nepheline syenite does not).

By Tony Hansen
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