Nacre used in a sentence

Nacre in a sentence as a noun

And you've been depositing "nacre" for over 2 centuries at a rate that in the past decade has been around 10 trillion per year. I know that a lot of that wealth doesn't actually come back to the US, a lot of it is immaterial, that there's also a lot of destruction and regeneration even without war, but there's no way I'd evaluate the current wealth of the US at only 90 trillion.