Nepheline Syenite
Mineral: Nepheline Syenite
Nepheline syenite can be characterised by:
- High purity
- Absence of free crystalline silica (free of labelling)
- Brightness
- Relatively low refractive index (1.53), making it a transparent filler in various binders
- High inertness in various media
- Easy wetting
- Transparency for UV-radiation (i.e. suitable for UV-curing processes)
Basic properties
| Property | Value | Unit |
| Hardness (Mohs) | 6 | [-] |
| Refractive index | 1.51 – 1.53 | [-] |
| Density | 2.6 | [kg/ dm3] |
Products:
| Product | Grade | D50
[µm] |
| Nepheline | AG20N | 6.3 |
Production locations: Sterjnoy (N) and Maastricht (NL)
Functionality:Nepheline products will provide good blocking performance and very good optical properties to the film.
Optical
Processing
Performance
