从旧时器时代到新石器时代,原始人类在选制、琢磨石器的劳动过程中,逐渐接触到细腻坚硬、色彩美丽的石头,从而产生了“玉为石之美”的观念。从最广泛的意义上说,人类在史前时期就已用玉,象旧石器时代北京周口店的山顶洞人所使用的石珠、石环等可说就已经属于广义玉的范畴。在新石器时代,我 From the era of old time to the Neolithic period, the primitive human gradually came into contact with the delicate, hard and beautiful stone in the process of making and polishing the stoneware, resulting in the concept of “jade is the beauty of the stone.” In the broadest sense, mankind has used jade in prehistoric times, such as the stone beads and stone rings used by the cavemen in the Zhoukoudian, Beijing during the Paleolithic era, which can be said to belong to the category of broad jade. In the Neolithic, me