High alkali frit P2962 70
Flint 12
China clay 18
+copper carbonate 2
Fired to 1080 on a tile fired to 1100 bisque
see bottom of page for the same glaze fired to 1260 on small tiles.
Stoneware turquoise
Barium carbonate 36
Lithium carbonate 2
Nepheline syenite 58
Ball clay 4
(optional bentonite 2, to stop it setting like rock in storage)
Copper oxide 2 or Copper carbonate 3
Fired to 1250 on a 1000 bisque tile
Soda feldspar 28
Whiting 15
+ Manganese carbonate 2
Matt purple, fired to 1080 on a 1000 bisque tile
High alkali frit P2961 75
Soda feldspar 25
Ball clay 5
Bentonite 2
Copper carbonate 5
Rich dark green, fired to 1080 0n a 1000 bisque tile
note use of P2961 instead of P2962, the P2961 contains iron which shifts the blue to green, however if the glaze is very thick, at certain viewing angles you get a lustre like blue turquoise finish. Not normally viewable straight on.
fired to 1260.
