I've prospecting for a while, (broken 2 prospector picks and very nearly a third) and the highest tin reading i can find is "very poor" I'm searching in granite, which supposedly can have "bountiful" tin, Am i doing something wrong? or am i just highly unlucky? or is this normal amounts of tin? seems to me like i should just rush a bloomery and bronze anvil and skip bronze entirely, i've found an area with "decent" hematite after all.