Originally Posted by
sparkz
Deposit statuses seem to be refreshed periodically, every something like 15-20 mins (not sure about the details but based on personal experience).
The safe spot seems to be 30+ minutes, at least back when I still bothered checking that it has never failed me. So for granite and any premium geologist, send the guy when there is approx 3,5 hours left on the deposit, not more.
Gets kind of complicated when you have 2+ masons close to the deposit, considering you cant control which deposits they use and how fast a particular one depletes.