That's about right, depending on the location. Can depend on how far you have to run from one node to the next, and whether there are any hostile mobs nearby. Sometimes it's quicker to do a circuit of 3 close nodes because they respawn when there's only one left. I gather up to 300 in one Eorzea day before I get too bored, then I go and craft something.

It's easier to do this while AFK most of the time doing something else, and just return when King's Yield has cooled down and use that to double the yield.