Factory:  Corner Steyr & Alfa Sts 
Aureus Industrial sites 
Email: info@keramicalia.co.za
Website: www.keramicalia.co.za
Cell: Dave  082  808 4757
Email: keraccounts@iafrica.co.za
Accounts: Myrtle Wakeford
Tel: (011) 764 2139
Tel: (011) 412 3261
P O  Box 2288
Wilro Park,1731


Spinel is the group of minerals with the composition R0R2O3.   It includes chromite and MgO.  This material is based on MgO Al2O3. It has a higher melting point than pure corundum; alpha Al2O3.   It is used in kiln furniture for firing pure alumina ceramics. There is no shrinkage; it expands and grows with progressive heat treatment at 1600°C.

Vibration cast with +9,5% water.

Development no. 25709