They are not crystals. They are just tiny hairs on the plant. I've always thought them to be the THC glands without the THC yet.

I also agree with Garden Knowm, cannabis.com welcomes people form overgrow and other message boards, but not to the people who are only here to post a few times then leave once their websites are back up. It's a very rude thing to do and most of us don't appreciate it.