hal mc whinnie on sun 30 jul 00
persimmon gloss for cone 6
flint 36
red iron oxide 11
epk 7
custer spar 30
whiting 15
melting power high
melter amount low
sio2 high
al2o3 low
melter low
if they are strongly fluxed glazes in this category they will be vitreous,
this is a gdd category for tansparent glazes, though they may flow becasue
they are low in alumin.
[one might add up to 15% more epk]
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