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, 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)

Functionalities

Nepheline products will provide low thermicity while maintaining good optical properties to the film.