I picked up a couple bags of vermiculite today from a local pool supply place. I called the manufacturer/distributor whom is also kind of local and found that I did buy pure vermiculite with nothing added to it. It was $18 for a 4 cubic foot bag. My question is regarding the size. Is what I bought ok????? Please check out the pics attached which hopefully depict the size. I wanted to pure my insulating hearth this weekend but don't want to use the incorrect material. BTW, this site is awesome and all the advise I've received to date has been accurate and greatly appreciated. Thanks, Rino
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Vermiculite Advise Needed