中国史前文字与甲骨文(143)

Paleoanthropology, Geology, Paleontology and so on. We should not only know
the historical and cultural evolution of the local region, but also know the historical
evolution of various ancient cultures in other regions of the country. Without a certain
profound culture and professional knowledge, no matter how big your eyes are, it won"t help. Identication depends on knowledge.
经验：在长期的社会实践中，不断地把各种古玉器拿在手中，反复观察古
玉的形制、文饰、颜色、包浆等等。时间久了，就会对古玉的老旧感产生一种
独特的感觉。同时，借助 10 倍放大镜和强光手电的帮助，可以对古玉的细部
进行观察：首先，可以看到古玉表面颜色的变化及光亮度，这实际是由于氧化
作用而在玉器的表面形成的一层包浆。还可以看到钙斑，绺裂及独特的蚀斑及
孔洞等等。这都是玉质埋在地下的坑洞中不断氧化的结果。特别是北方地区的
古玉，如红山古玉最为明显。古玉在自然界中形成的这些变化，是现在人工无法伪作的。伪作只能形似。伪作再“乱真”，也踏不进“真”的门槛。
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PREHISTORIC CHINESE CHARACTERS AND ORACLE BONES 关于历史遗物实物文字
Experience: In the long-term social practice, he kept holding all kinds of ancient
jade in his hands and repeatedly observed the shape, decoration, color, pulp wrapping
and so on. Over time, you will have a unique feeling about the old feeling of ancient