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Nepheline syenite
Nepheline syenite is a quartz-free aluminium silicate that primarily consists of the minerals nepheline, microcline and albite. Because of its extremely low melting point and the high alumina content nepheline syenite is an ideal basic raw material for the glass and ceramics sector.

Technical datasheets
 Matrix 330
 Spectrum A200
 Spectrum A400
Other products and blends are available.
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