Indonesia has large reserves of minerals that could be processed into raw materials to feed ceramic industry like silica alumina, zircon, felspahr and ballclay
He was able to achieve a dense hard, white translucent and glassy effect on his formulated porcelain body at 1300[degrees]C of saggar cone 10 (Kaolin 32%, Ballclay
8%, felspar 48%, Quartz 12%) which yielded the best porcelain property.
Comparison of heavy metal adsorptions by thai kaolin and ballclay
The predominate recipe was a cone 04 terracotta that used RedArt, Fireclay ballclay
and different grogs.
Technical Notes: Firing to 1220[degrees]C Bodies: Briar Wheels Garden terracotta Scarva College Buff 1st Slip (poor adhesion) 50:50 ballclay
and china clay.