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The back of the bag is blank. The warning label on the front mentions feldspar, crystalline silica and mica.
| Hazards | Feldspar Feldspars are abundant and varied in nature. They contain small amounts of quartz (while nepheline syenite does not). | 
| Materials | Custer Feldspar The most common potash feldspar used in ceramics in North America. While having been a standard for many decades its supply appears in doubt in 2024. | 
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