Edited by Aelryinth
"Hahahaha, I understand now! So it's like that!" Zhang Che couldn't help bursting into laughter outside the cave.
The baseball-sized, multi-faceted crystal laying in his palm at this moment wasn't black at all!
It had a rich purple-gold luster emanating from within, its appearance resembling a luxurious gemstone. According to his memories, wasn't the description of purple-gold crystal ore exactly like this!?
In the cavern filled with fluorite, the reason why the purple-gold crystal mineral looked black was exactly because of the fluorite!
It was most likely due to to the pure green light emitted by the fluorite. Shining on the purple-gold crystal mineral, its natural color couldn't show and it could only appear as black.
Zhang Che wasn't well-versed in the study of optics, but this was the fact obvious to him. Naturally he could deduce the underlying reason by working backwards.
