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It used to be sold for only around $2 a bag, as Kleen Sweep; but I think they've now added oil to it and are selling it for a great deal more. Rice hull ash is around 94% or so of pure, fine silica, so you could use something like amorphous silica as a replacement for most of it and fill it in with the other oxides in small amounts. A glaze chemistry program should be able to get you close enough to the formula.I think one possible test is to replace 94-95% of it with the amorphous silica and the rest with wood ash. That would give some of the trace minerals and some carbon, which the rice hull ash has.
Mackenzie Smith bought a bunch for the spring concentration. Susan Feagin might have his source.
Mckenzie gave me a source a year or so ago. I check my supplier list and found this one. I'm not sure if this is the one he gave me.Agrilectric is burning rice hulls and they say they're selling the ash. I didn't find any cost info.Here's their web page.http://www.agrilectric.com/ricehullash.php
PS:I found at formula for rice husk ash in my notes, if anyone wants it.
Hey John,I purchased a 50 pound bag from Industrial Minerals in Sacramento a few years ago. I would be willing to ship 10 pounds or so if that would help. I have more than I will need.Best,Craig
I just read June's comments. Perma-Guard in located in ABQ and they sell Pure Fossil Flour which is 100% diatomaceous earth from an inland,fresh water source, they claim it is "food grade," I also have more of this on hand than I will use. Let me know.Craig
June and Michael,Thanks for the reply.It is very nice of you to take the time to write. I got some of the stuff from McKenzie but Joe Brecha was wondering about a bulk source for his supply business in Tacoma Washington. I will pass it on.John
Craig,That is nice of you, but I have enough for myself, I was trying to find a reliable source for Joe at The Clay Art Center in Tacoma.I will have him look a the posts and hopefully he will get back to you.Thanks,John
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