DICKINSON, Texas -- Police say a woman tried to tell them the shards of meth in her purse were really "healing crystals."Friendswood police said they stopped Cactus Calderas after she failed to signal a lane change.Officers said she looked nervous, but gave police permission to search her vehicle.Police said they found the meth in her purse, along with butane lighters and a small pipe.Calderas is charged with possession of a controlled substance.