I have had two eggs laid by one girl in one day a few times over the years. I think one may have been laid during the night and the next during the day. I collect the eggs in the evenings before they go to roost.
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View attachment 1364899
182 grams. An average large egg is around 60 grams.

I have never seen this before. I had to look it up to see if it was possible. I don't think the 10 week old is old enough to lay yet. Am I right?
Are you sure she is laying 2 eggs a day and there isn't another bird laying? Have you actually seen her lay the eggs? It's not impossible but unusual. I have had it happen but rarely.