It is used in clay bodies (rarely alone due to excessive shrinkage)
to promote plasticity and higher firing ranges (cone 5-13). It is also
used as a source of Alumina in high temperature glazes (cone 8-13), and
it helps to keep a glaze slip in suspension.
Melting Point: 1760oC
Glaze Material Group: Alumina, Glass former
Alternative Name: Hydrous Alumina Silicate
Safety: Toxic material or hazardous as airborne dust, and/or as powder and/or in liquid suspension