Some people say it is hard to candle blue eggs. What does it look like? It seems like I can see lots of light coming through the eggs, but is it possible that the thick blue egg shell is masking the veining? One of 6 duck eggs is alive and kicking, so obviously healthy. The other five glow with shadows, but they are from different ducks. The shells seem thicker. It's day 12, and I can't bring myself to throw them out. What if I'm wrong!!!!