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中国古代玉器是古代石器的重要组成部分,是随着对岩石物理性质(诸如光泽、颜色、透明度、解理、硬度等)认识深化而由石器中分化产生的,并在礼仪、祭祀、宗教、装饰、丧葬等活动中赋予很高的地位。玉器加工水平如何,集中代表了石器的加工水平。可是,不同岩性的玉材加工难易不同。文物考古中,涉及古代治玉水平,常常缺少一项重要标准,即岩石的硬度。玉材越硬越难加工,若能攻硬度较高的材料,攻硬度较低的材料自然不在话下。就是说,何时出现较高硬度的玉制品,无疑是衡最早期治玉水平的重要标志。
Ancient Chinese jade is an important part of ancient stoneware and is produced by the differentiation of stoneware with the deepening understanding of the physical properties of rocks such as luster, color, transparency, cleavage, hardness, etc., and has been widely used in etiquette, worship, religion, Decoration, funeral and other activities given a high status. Jade processing level, focusing on behalf of the stone processing level. However, different lithology jade material processing difficult different. Cultural relics archeology, involving the level of ancient jade, often missing an important criterion, namely the hardness of the rock. The harder and harder jade material processing, if we can attack the higher hardness of the material, attack the lower hardness of natural materials can be more. That is, when there is a higher hardness of jade products, is undoubtedly the most important symbol of the earliest level of governance jade.