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manganese speckled clay

updated sat 18 nov 00

 

Dave Murphy on fri 17 nov 00


Hi all:

With all the talk about powdered manganese and black clay that has been =
coloured with manganese, what about the safety of clays that have =
granular manganese in them for a speckled look. I know a lot of people =
who use clay bodies like that. What about the fumes from firing such a =
body? Is there any data on this stuff. Do the clay makers have any =
liability? Yikes!

Barbara Murphy
Waterloo County Pottery
Waterloo Ontario
Canada=20

Mike Gordon on fri 17 nov 00


Hi,
You can mix granular manganeze with wax resist and brush on the surface
for a spotty /speckled look. We did with c/5 one fire reductuion. Mike
Gordon