Need help finding vermiculite

There is no number to call but I bought this vermiculite, I don't think there are another chemicals. Can anyone give. Hand?http://i1233.photobucket.com/albums/...ps309e6dd6.jpg

Growerssolution.com is where I found vermiculite and perlite and they offer different sizes.

1.1 pastels, 1.0 lesser, 0.1 het blurry, 0.1 spider, 1.1 norm. 0.1 dinker,

D.O.T would require any chemicals to be listed on the packaging, but that looks like pretty generic packaging.

I prefer the 8qt. bags from Lowes- and they have Perlite as well. The even say no fertilizers or chemicals added.