This piece of stone material is a black stone over a meter high, not only Lin Feng but also cultivators are observing this black stone.
A middle-aged cultivator stands before the black stone, first observing it, then releasing a pure energy from his right hand, gently tapping the stone, finally withdrawing his hand and standing in place, lost in thought.
The middle-aged cultivator clearly knows his stuff, a few actions encompass the five steps of the stone identification skill: "observe, shake, touch, feel, perceive."
"That's the Vice Sect Hierarch Dong Yuqing of the Xuan City Sect, right? I've heard he's skilled in stone identification, when others cut through a hundred pieces of stone, they may find four or five valuables, but Dong Yuqing often finds fifteen or sixteen."
"That's right, it's because Dong Yuqing has profound research on stone identification skill."
"Now Dong Yuqing is observing that black stone, could it be that he has taken a fancy to it?"