yeah, thinking it's either beetle eggs or osmocote. they are shockingly similar.
the bag claims that it's 100% coconut coir, though there are pieces of perlite in it so I wouldn't put it past them that some osmocote accidentally got in there.
thankfully, I believe osmocote is animal free. natural plant based fertilizer. I think it's still safe to use.
will call the store though, to be sure.