红山古玉红沁极少......?任南

许群利

地表裸露与地下埋藏

风吹日晒与地窖中的大白菜

鲜明对比

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淡墨轻衫

任老师，有放置之前的对照照片吗？

才洪

 玉有吸收周围物质的特性，和田玉子料、岫岩河磨料要比山料油水光要足得多，看到子料总能叫人联想到水的感觉。和田玉长时间佩带、把玩又会产生很足的脂肪光泽，是因为它吸收了人体内油脂成分。白玉、黄白玉长时间暴露于有铁等元素的地表与河表面在阳光下要产生红皮（枣红皮、虎皮、秋梨皮），青玉一般产生黑皮（有经验的和田地区的拾玉人往往能从玉的外皮色就能分析出皮内玉的颜色，实际上有一点美术常识的人都知道同样是红色，把它涂在黄色底色上就变成橙色，把它涂在兰色底色上旧会变成黑色，道理就这么简单）。那么，把一块带红皮的古玉在脱离了产生红皮条件的环境下它还会吸收周围什么物质呢？也许它吸收的是光的特性了。

杨玉缘

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杨玉缘

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杨玉缘

哪天我给大家拍一个玉矿的红色情况，供大家参考。

任先生说的对，红沁真的很少。也正是不多见，仿品才很有市场，但真的红沁与假的有很大的区别，大家仔细看就不难发现。

意如玉

以下是引用杨玉缘在2007-9-23 21:03:52的发言：
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这件东西是假货，我见过，谁做的我知道。

杨玉缘

奥，您这样认为。

任南

国藏古玉材上的红沁与切割痕及解理态

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[此贴子已经被作者于2007-9-25 13:34:16编辑过]

任南

 

07.10.4记录

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[此贴子已经被作者于2007-10-5 13:42:22编辑过]