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It is stated as non-hazardous in accordance with GHS criteria. Although like feldspar in chemistry, mineralogically nepheline syenite powder is a gound igneous rock, it does not contain quartz.
| Hazards | Feldspar Feldspars are abundant and varied in nature. They contain small amounts of quartz (while nepheline syenite does not). | 
| Materials | Covia Nepheline Syenite | 
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