jrgpots Posted July 18, 2014 Report Share Posted July 18, 2014 I have a good supply of olivine, a magnesium iron silicate also known as paridot. The Insight database calls it a refractory that melts around 2800F. Would olivine dust of about 40 mesh when added to a glaze result in green flecks? Does anyone have any experiance with it? If not, I will post my test tile results. Jed Link to comment Share on other sites More sharing options...
Marcia Selsor Posted July 18, 2014 Report Share Posted July 18, 2014 Try it. Who knows what you'll get. Sounds like an interesting test. Marcia Link to comment Share on other sites More sharing options...
Guest JBaymore Posted July 18, 2014 Report Share Posted July 18, 2014 I'm of the try it school also. However even if the melting point of the PURE material is 2800 F....... remember that yopu will be suspending the mateial in a liquid solution of other oxides that can have a fluxing interaction at the edges of the particles. All bets are off. best, ..................john Link to comment Share on other sites More sharing options...
jrgpots Posted July 18, 2014 Author Report Share Posted July 18, 2014 Thanks Marcia and John. I have not found a single article or mention of using this stuff in glazes. There were articles about its use in foundry sands and that is about it. This time I might not be reinventing the wheel. On the other hand, there may be a good reason why it's not mentioned. We will see. Jed Link to comment Share on other sites More sharing options...
Bob Coyle Posted July 19, 2014 Report Share Posted July 19, 2014 My guess is that it might work at maybe cone 05 but maybe would melt at cone 6 or 10. the mica in micacious clay fluxes out if you fire to cone 6. Let us know how it comes out... and post a picture. Link to comment Share on other sites More sharing options...
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