[Jewelry making - Article 00226] - Re: [Orchid] Substitute for vermiculite and alumina hydrate?

[Thomas Janstrom]

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    I can't answer your specific question, but I can point you to a
    source for small amounts (5-10lbs) of alumina (either calcined or
    hydrate); try a good pottery supply house, you know the kind of
    place you'd go if you needed an obscure kind of clay or glaze. They
    usually carry alumina and silica (a bad alternative choice!!!!) in
    the required powder form. Not being a potter I don't know what
    potters use alumina for, but I use it in my glass molds..... 

Cheers, Thomas.
Janstrom Designs.
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