Pretty much the same as the original..
Only on the original you would get the contents, whatever it is, it would tell you when you collected it then you trade it just like you do with all your other cargo at a space station.
This seems like you dont know the contents, and trade it just by flying close to another ship..
It appears on your contacts list and target prompt as Iron Ore and once you scoop it you can check your cargo hold on the right-hand panel.
The selling to an anaconda by getting close is just a for this scenario as trading doesn't come until a later alpha phase (Trading and Travel).