Does vermiculite loose fill insulation contain asbestos and how can it be tested?

Discovered some vermiculite loose fill insulation. How can it be determined if it contains asbestos or not?

If the vermiculite was installed post 1979 then it probably has no asbestos in it, and before that it -probably- does. You can get confidential testing online from labs for a small fee by sending them about a Tablespoon sample in a double ziplock bag. I paid $35 about 5 years ago to have my popcorn ceiling tested but sorry, can't remember the name of the lab, and now there are dozens.