Read it through once

“Yes, it did. Ballarat and Bendigo have produced the three monumental nuggets of the world, and this one is the monumentalest one of the three. The other two represent £9,000 a piece; this one a couple of thousand more. It is small, and not much to look at, but it is entitled to (its) name—Adam. It is the Adam-nugget of this mine, and its children run up into the millions.”