请教一些关于籽料与山料和俄料的区别！

首先我是新手，今天看了一块带皮的“籽料”，皮子开始我认为是粘上去的，后来通过放大镜观察确认不是，没皮的部分感觉有些白，在比较薄的地方（也就是料的边沿部分），稍微有些透的样子，而且感觉也是带油，包括皮子也是带油，可以确定不是染色皮，观察下来感觉很像籽料，后来一个熟人说这是俄料，不是和田玉，我很诧异，所以没敢买，主人开价13000，后听说我们在市场有熟人，直接说了底价8000，虽然我感觉这个价位有些高，但是还是感觉料不错，可是听了熟人的话，我就真不敢买了，请大家说一下应该怎么区分籽料、山料和俄料！谢谢

籽料与山料和俄料的区别主要有以下几点：
1、第1点、含义不同：
籽料是指在河中天然形成的卵石形玉料，外有籽皮。经过自然的长期风化剥解为大小不等的碎块，崩落在山坡上，再经雨水冲刷流入河中。待秋季河水干涸，在河床中采集的玉块称为籽料。
山料是没有风化面表皮的或风化层很薄的玉石荒料，多为从矿山露头或掌子面上开采的原生矿石，指的是产于很高的新疆地区雪山上的原生玉矿。
俄料产自俄罗斯的软玉。软玉主要产于接触交代变质带及浅变质岩带的绿片岩相中，有时也可由基性岩浆岩蚀变或变质而成。
2、第2点、主要分布范围不同：
山料的新疆和田玉分布在新疆所辖昆仑山和阿尔金山一带。俄料主要是分布在俄罗斯、极少数在哈萨克斯坦和外蒙古。籽料主要分布在河流的中下游河床中。



3、第3点、特征不同：
籽玉的特征，它一般为卵石形状，块度比较小，多数留有黄、红、黑等风化色皮。籽料质地细腻紧密，光泽滋润、柔和，微透明，是新疆软玉中的上品，表面如凝脂。
山料的组成以透闪石为主，并含有蛇纹石、石墨、磁铁等微量矿物质，玉质为半透明，抛光后呈脂状光泽，硬度为5．5度至6．5度。
俄料的特征是外部带一层石灰状的表皮，很酥软,靠近肉的皮容易染色可以被利用来做黄沁，但做出来的东西是不带毛孔的，所以可从毛孔方面来做鉴别.里面肉细，有高白，部分结构相对较粗。
参考资料来源：搜狗百科-俄料
参考资料来源：搜狗百科-山料
参考资料来源：搜狗百科-籽料

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籽料是指在河中天然形成的卵石形玉料，外有籽皮。经过自然的长期风化剥解为大小不等的碎块，崩落在山坡上，再经雨水冲刷流入河中。待秋季河水干涸，在河床中采集的玉块称为籽料。 没有风化面表皮的或风化层很薄的玉石荒料，多为从矿山露头或掌子面上开采的原生矿石。在中国南方，又称之为新山。其中，翡翠山料又常被称为新坑(fresh iadeite-rough)，甚至称为新种，则是针对该山料并不是采自河谷砾石层等老坑口，或指该山料透明度（质地）不如老坑口的产品。实际上，山料翡翠也不乏质地优良者。 俄料：产自俄罗斯的软玉（不是新疆的和田玉），行内称为俄料，产出形态有山料、籽料、山流水料。 软玉在世界上有诸多产地，如中国、俄罗斯、加拿大、新西兰、美国等，但以中国新疆和田最为著名。软玉主要产于接触交代变质带及浅变质岩带的绿片岩相中，有时也可由基性岩浆岩蚀变或变质而成。

和田山料内部一般为颗粒状结构，或者松散的毛毡状结构，结构松散，和田籽料结构细密，为毛毡状结构，俄料为颗粒状结构。皮子带油不带油，于是不是籽料没有任何关系，现在人都把玉放到石蜡中煮或者浸泡，这样出来的东西都会很油。