红山文化诸文化古玉.裂的表象【9次】

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[此贴子已经被作者于2009-5-7 11:59:03编辑过]

玉神人

老师辛苦！多保重！[em27][em27][em27]

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<p><strong><a href="http://www.rn-hswh.com/index.asp" target="_blank"><font face="楷体_GB2312" color="#ff0000" size="7"><strong><em>任南红山文化网</em></strong></font></a>二氧化硅溢出,此现象地质专家已在进行年代分析.</strong></p>
<p><font color="#ff0033" size="5"><font color="#6600ff" size="7"><strong>&lt;裂&gt;</strong></font>动刀后的次生表象的辩认,有助对真伪鉴别的能力</font></p>
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<p>&nbsp;奇怪玛瑙上的二氧化硅溢出,此现象地质专家已在进行年代分.</p>
<p>析<br/><img title="dvubb" alt="图片点击可在新窗口打开查看" src="http://www.rn-hswh.com/bbs/skins/default/filetype/jpg.gif" border="0"/>此主题相关图片如下：<br/><a href="http://www.rn-hswh.com/bbs/UploadFile/2006102513382082133.jpg" target="_blank"><img title="dvubb" style="WIDTH: 500px" alt="图片点击可在新窗口打开查看" src="http://www.rn-hswh.com/bbs/UploadFile/2006102513382082133.jpg" border="0"/></a><br/><br/><img title="dvubb" alt="图片点击可在新窗口打开查看" src="http://www.rn-hswh.com/bbs/skins/default/filetype/jpg.gif" border="0"/>此主题相关图片如下：<br/><a href="http://www.rn-hswh.com/bbs/UploadFile/2006102513382063458.jpg" target="_blank"><img title="dvubb" style="WIDTH: 500px" alt="图片点击可在新窗口打开查看" src="http://www.rn-hswh.com/bbs/UploadFile/2006102513382063458.jpg" border="0"/></a><br/><br/><img title="dvubb" alt="图片点击可在新窗口打开查看" src="http://www.rn-hswh.com/bbs/skins/default/filetype/jpg.gif" border="0"/>此主题相关图片如下：<br/><a href="http://www.rn-hswh.com/bbs/UploadFile/2006102513382032418.jpg" target="_blank"><img title="dvubb" style="WIDTH: 500px" alt="图片点击可在新窗口打开查看" src="http://www.rn-hswh.com/bbs/UploadFile/2006102513382032418.jpg" border="0"/></a><br/><br/><img title="dvubb" alt="图片点击可在新窗口打开查看" src="http://www.rn-hswh.com/bbs/skins/default/filetype/jpg.gif" border="0"/>此主题相关图片如下：<br/><a href="http://www.rn-hswh.com/bbs/UploadFile/2006102513382062378.jpg" target="_blank"><img title="dvubb" style="WIDTH: 500px" alt="图片点击可在新窗口打开查看" src="http://www.rn-hswh.com/bbs/UploadFile/2006102513382062378.jpg" border="0"/></a><br/></p>
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<p><br/><img title="dvubb" alt="图片点击可在新窗口打开查看" src="http://www.rn-hswh.com/bbs/skins/default/filetype/jpg.gif" border="0"/>此主题相关图片如下：<br/><a href="http://www.rn-hswh.com/bbs/UploadFile/200732718514433846.jpg" target="_blank"><img title="dvubb" style="WIDTH: 500px" alt="图片点击可在新窗口打开查看" src="http://www.rn-hswh.com/bbs/UploadFile/200732718514433846.jpg" border="0"/></a><br/><br/><img title="dvubb" alt="图片点击可在新窗口打开查看" src="http://www.rn-hswh.com/bbs/skins/default/filetype/jpg.gif" border="0"/>此主题相关图片如下：<br/><a href="http://www.rn-hswh.com/bbs/UploadFile/200732718514479802.jpg" target="_blank"><img title="dvubb" style="WIDTH: 500px" alt="图片点击可在新窗口打开查看" src="http://www.rn-hswh.com/bbs/UploadFile/200732718514479802.jpg" border="0"/></a></p>
<p><font size="6">以上为自然态开裂,开裂自然态表象种类很多.</font></p>

[此贴子已经被作者于2009-5-7 11:59:21编辑过]

任南

<a href="http://www.rn-hswh.com/bbs/UploadFile/200732913552684506.jpg" target="_blank"><img title="dvubb" alt="图片点击可在新窗口打开查看" src="http://www.rn-hswh.com/bbs/UploadFile/200732913552684506.jpg" border="0" style="WIDTH: 500px;"/></a><br/><p>产生这种现象和晶体解理的交角有关。原始状态下的晶体晶面一般不太平整，一经受外力产生解理后，这样的晶面就消失了，产生了所谓的具有光滑面的晶体解理。解理也就是晶体内部在连接力弱的地方，受外力作用(如敲打、挤压等)出现了断口。解理面呈完全性或不完全性的光滑平面，透闪石的断面，小角侧的聚合解理面，容易形成纤维丝状或错综细多片状。而大的一侧，则较易显示为平整的光滑面.</p><p>要知道玉的内部显微结构特点直接影响到蚀变速度。具体地说，顺着杂乱排列的透闪石针状晶体，比沿着整齐排列的晶体更易于蚀变溶解，沿裂缝处和未抛光的表面蚀变更加迅速。所以图中的一段有沁而另一段却丝毫没有沁色的肌理，就是因为受外力作用后玉器断口解理的交角接受沁色的速度不同所致。</p>

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[此贴子已经被作者于2009-5-7 11:57:21编辑过]

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mihongshan

[em17]任老师做了一件上 对的起祖先,下对的起子孙的好事.

mihongshan

虽然我的藏品现在得不到专家的认可,但是总会有一天被大家认可的,看到任老师的努力,感到希望就在眼前.让我们一起努力,坚持,让红山瑰宝光耀世界.

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[此贴子已经被作者于2009-5-7 11:57:50编辑过]

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[此贴子已经被作者于2009-5-7 11:58:18编辑过]