Emily's Purple - Opaque Blue/Purple

Custer Feldspar (I used Potash Feld)   36.60

Gerstley Borate                               19.40

Ball Clay                                         11.80

Talc                                              15.10

Silica                                             10.80

Dolomite                                          6.50

Zircopax                                         10.00

Cobalt ox                                         3.00

Total                                            113.20

Cool to 900c, hold for 1 hr. Lovely smooth blue/purple, opaque glaze.