Nepheline Syenite A200 Size:1kg Deep Firebrick is an opaque

Deep Firebrick is an opaque

Crystals soften and lighten

A thicker application will result in larger cracks and more tactile texture

Venting is a necessity if your kiln is in your home

Cone 6: Midnight Rain is a blue-green breaking gloss glaze that contains a black crystal

Nepheline Syenite A200 Size:1kg Deep Firebrick is an opaqueA complex rock made up of nepheline (primarily), albite and microcline used in ceramic glazes and clay bodies to initiate or promote fusion. It is mined in Southern Ontario, northeast of Peterborough. A 3: 1 mixture of nepheline syenite and silica can be used to substitute for soda feldspar such as Minspar 200. Its slight solubility can lead to hard panning in glazes; correct with epsom salts.