C434 Betting!
Normally, people who cut primeval stones would choose the first method, first choosing the place they felt they had primeval stones. This way, later on, they would have more room to choose, even if they couldn't get the ore, they could sell it at a low price and make their losses smaller.
"Swish, swish, swish, swish." The sound of electric saws rang out and the ore was ready