As the machine cut and polished, the stone surface was removed off bit by bit, but it did not reveal the green color of jade like the first two stones. Instead, it was still a stone.
The polisher continued to go down. In five minutes, a large piece was shaved off, but it was still stone.
The person cutting stopped the machine and took out the flashlight in his hand again to shine on the stone. There was no green at all where it had been polished. In fact, it was completely opaque.
The stone man moved the flashlight in his hand to the unpolished stone surface and said, "Let's try again. Now, everyone can see that the light on the stone surface is still green, which means that there's jade below. But when we move the light of the flashlight to the place that has been polished, the green light is gone."
