jrgpots Posted May 31, 2015 Report Share Posted May 31, 2015 Min, have you figured out the cause of the speckles yet? I'd love to hear about your progress.. Jed Link to comment Share on other sites More sharing options...
Min Posted May 31, 2015 Author Report Share Posted May 31, 2015 Min, have you figured out the cause of the speckles yet? I'd love to hear about your progress.. Jed Hi Jed, Nope haven't solved it yet. I have 7 markets coming up so glaze testing has slowed down (stopped) for now as I'm trying to crank out the pots. Seems I'm running faster and faster and still haven't caught up. Min Link to comment Share on other sites More sharing options...
High Bridge Pottery Posted June 1, 2015 Report Share Posted June 1, 2015 I had a few glazes come out similar to these recently but with cobalt carbonate. Glazes both high in Gillespie Borate, actually they only contained GB, kaolin and silica. I will take some pictures tomorrow. I will also test iron to see if similar speckle appears. Thinking about it some more... I did add 5% rutile along with the cobalt. Maybe not the GB causing speckle.hm Link to comment Share on other sites More sharing options...
Babs Posted June 1, 2015 Report Share Posted June 1, 2015 Think your prob may be just the cobalt Carb. I've had a speckly effect from that on a number of occasions. Link to comment Share on other sites More sharing options...
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