"Chan'er, what is this stone gambling thing?" Ye Feng asked, puzzled.
"Some raw stones get buried deep in underground mineral veins when they form. Once they are mined, it's impossible to tell just by looking whether there are actually mineral ores hidden inside."
"So stone gambling is a way of betting on whether a raw stone contains precious minerals. Of course, these stones don't just hold ores—they can even harbor other rare treasures."
Chapter 304