I don't smoke myself but does all weed have the crystals in it, is it the good quality or is the crystals added in.
First off, almost all weed has "crystals", unless it has poor genetics or the weed has been handled so much that all the crystals rubbed off. 2nd, the crystals are called Trichomes. http://www.drugs-forum.com/growfaq/1529.htm That link is all about the trichomes.
The crystals have most of the THC so if you dont have crystals the weed is of poor quality so go smack your dealer : ) but yes its natural and not added.