Swarch 28.03.11

I enjoyed learing how to mark the finds today, each piece has a code (relating to the dig) drawn on with pen and ink. They may also have subsequent numbers added by the museum they end up in. I have often been intrigued by these markings and this is something I have been considering using in my own work. I could perhaps use a code that relates to where the sherds were found – and ordinance survey grid reference, or to the number of pieces made or glazes tested. The images below are of some of the pieces I have marked at SWARCH.

Glazes

Stoneware glaze experiments so far

Recipes:

Emmanuel Cooper Smooth White 1260 (from old edition of The Potter’s book of glaze recipes pg 164)

Feldspar 45

Dolomite 20

Whiting 10

Ball Clay 25

I then tested it with 10 different oxides:

  1. Copper Ox 4%
  2. Cobalt 1%
  3. Tin 8%
  4. Iron 7%
  5. Chromium 1%
  6. Nickel 2%
  7. Rutile 8%
  8. Manganese 4%
  9. Titanium 5%
  10. Vanadium 5%

Which were then all tested over each other (Greg Daly colour blend) which gave the 66 results in the picture. These were then tested on porcelain.