Ingredients

Ingredient Amount
Dolomite 10.00
Ferro Frit 3134 20.00
Calcined Alumina 10.00
Ravenscrag Slip 60.00
Add Amount
Cobalt Oxide 2.00
Rutile 5.00

Instructions

Produces good results at Cones 5, 6, and 7 with a medium blue surface breaking to an olive green where thin.

Published in "Ravenscrag Slip" by Tim Lerner, in the Jan/Feb 2006 issue of Pottery Making Illustrated.
Use the smallest-particle-sized alumina you can get.