Sam observed the spirit stone powder in his hands while injecting the high amounts of spiritual energy.
After a few seconds, he felt the powder grains started forming bonds again and an irregular solid structure formed in his hand.
Sam was completely astonished as he stopped his spiritual energy and looked at the solid structure.
The structure is completely irregular and it isn't even like a crystal when it was in its initial used up spirit stone form.
While he was observing the structure, suddenly it collapsed again and turned back to its powder form. He didn't understand the reason at all and continuously conducted the experiments.
He tried to use the core of the stone along with it and he tried to make the structure better by controlling the powder neatly and he discovered something new.