块是一种带缺口的玉石饰品,一般垂挂于耳部,曾广泛盛行于东亚地区的蒙古人群中。东亚地区自距今8000年前的内蒙古敖汉旗兴隆洼文化出现软玉制作的块饰以后,一直到今日东南亚加里曼丹的Kelabit与Keyan—Kenyah族人,依然垂挂着与中国新石器时代相似的玦饰,足足绵延了8000多年①。长江下游的河姆渡文化是东亚地区块饰的重要分布区之一,先民制作和垂挂玉石块的历史也非常久远,至今已有7000年的历史,时间上仅次于东亚最早的兴隆洼文化。因此, Block is a jade jewelry with a notch, usually hanging on the ear, has been widely prevalent in East Asia in the Mongolian population. In East Asia, Kelabit and Keyan-Kenyah ethnic groups in Kalimantan, Southeast Asia, still hang with similar Neolithic age in China since the Xinglongwa culture in Aohan Banner, Inner Mongolia, 8,000 years ago,玦 ornaments, a full stretch of more than 8000 years ①. The Hemudu culture in the lower reaches of the Yangtze River is one of the important distribution areas for block decoration in East Asia. The history of the ancestors making and hanging jade blocks is also very old. So far, it has a history of 7,000 years, second only to the earliest Xinglongwa culture in East Asia . therefore,