S
SeaMaiden
Chaos ...thanx for that link to mineral magic ... it looks interesting enough to do some research on .
sea maiden ..... i've been looking into it sense you mentioned it , but i'm having a hard time finding it here on the east coast .... any suppliers you can recommend ?
Hmm.. unfortunately, no I can't. I get mine from a local feed store, in the form of animal bedding, but here in California we've got a few rice growers. I've been told that peanut shells are a good substitute, so I'm thinking along those general lines--nut shells or hulls.
Or, horsetail fern (though I've never used or grown it). The organic soil section has a good bit written on it, especially from ClackamasCoot and jaykush. You can make a fermented plant extract with it, as well as mulch it, specifically as a source of Si.
First, though, I'll suggest contact feed stores, any place that supplies horse people.
~~~EDIT~~~
D'oh! I see kcoc got you there.