这个是什么石头？有价值吗？
这个是什么石头？有价值吗？
这个石头是在煤矸石里面捡到的 ，颜色古铜色，重量上比一般石头重！请问是什么石头 有价值吗？ 滥竽充数者绕行！ 谢谢！！！
是火成岩碎块。
火成岩由岩浆（Magma）直接凝固而成。高温之岩浆在从
液态冷却中结品成多种矿物，矿物再紧密结合成火成岩。化学成分各异之岩浆，最後成为矿物成分各异之火成岩，种类繁多，细分之有数百种。如依其含矽量之高低做最简明之分类，火成岩有酸性（Acidic）、中性（Intermediate）、基性（Basic），及超基性（Ultrabasic）四大类。同时火成岩之晶体，因结晶时在地下之深度 不一亦有粗细之别；将此分别代表深浅之粗细做为矿物成分以外之另一分类依据。
火成岩可分成如次之种类：晶体粗大之酸性火成岩为花冈岩（Granite），细小至肉眼不能辨识者为流纹岩（Rhyolite）；晶体粗大之中性火成岩为闪长岩（Diorite）细小者为安山岩（Andesite）；晶体粗大之基性火成岩为辉长岩（Gabbro），细小者为玄武岩（Basalt）；晶体粗大之超基性火成岩为橄榄岩（Peridotite），此种火成岩无晶体细小者。晶体特大之火成岩统称伟晶岩（Pegmatite），但应指明其为伟晶花冈岩、伟晶闪长岩，或伟晶辉长岩。此外，不论其成分如何，岩浆在地面凝固时通常不暇结晶。此等不结晶火成岩均为火山岩，或成块状无结构之玻璃，酸性及中性者成黑耀石（Obsidian）或浮石（Pumice），基性者成玻璃质玄武岩（BasalticGlass），或在喷发时破碎成火山角砾岩（VolcanicBreccia）或凝灰岩（Tuff）。 火成岩以岩基或岩脉形体侵入较古岩层，倘再穿至地面，则成火山。 火成岩不仅为一切其他岩石之原料及多种矿产之母体，且为全球水分之来源。不论在深处或浅处，火成岩通常仅在地壳正有犟烈活动之时之地出现，并非一时处处或一处时时有为火成岩前身之岩浆活跃。岩浆在地下或喷出地表后冷凝形成的岩石。又称岩浆岩。大部分火成岩是结晶质的，小部分是玻璃质。火成岩的形成温度较高，一般介于700～1500℃之间。岩浆在地下冷凝固结形成的岩石称侵入岩；喷出地表冷凝固结形成的岩石称喷出岩。火成岩主要由硅酸盐矿物组成，在地壳中具有一定的产状、形态。许多金属矿产与非金属矿产都与火成岩有关，有时它本身就是重要的矿产资源。
具有收藏价值，用玻璃框罩上放在书柜里很雅致。
参考文献：汇编
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相关问答：
从颜色看不是煤精石啊。因为形成煤炭的植物中含有铁、铜、锌等物质，又因为有不少植物有吸聚各种矿物质的能力。所以当这些植物被埋入土中形成煤炭时，这些矿物质就有可能凝聚成矿核。煤矸石中有时就会发现金属元素很高的矿物，它们很重，并且甚至有金属光泽。
只是一块经过长途搬运、像鹅卵石一样被磨平棱角的黄铁矿，在未被磨平的部分还可以隐约看到其正立方晶体的轮廓。
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primer Readers, keep you waiting,gucci bags, another of this brainchild, to answer all kinds of advice
we will back plans for each letter managed to support the 4 months, the Zhaojiabuzhu up. We finally realized the following three points: 1. Because everywhere at once, we do not have enough time to conduct one on one communication with readers, even ruled out the interviews, telephone and letter after the e-mail. 2. Even if the e-mail, also concentrated solely in filling a separate return and selective response. (Incidentally, to explain: Since September 2001 we have only one computer before, processed daily \a computer, in March 2002 and then updated on broadband mail software, get a separate reply to the reader greatly increased. However, we give priority to the backlog of letters written in reply to a message, they often receive a \\months, was discovered by chance, and re-enable. At this point, but also to even the \\Since our \This \kind of problem. For example, from the Harvard campus Tinger about the colorful life and social practice, to answer readers are most concerned about: \\\How to use \Liu Yiting \December 16, 2000, we opened up a long \For those who need coverage can speak of a book more thoroughly the issue, we first \
primer Readers, keep you waiting, countless readers to ask questions,GHD Straighteners, give us day and night caring
to write a book answer \At the time, \Been printed in the book, like pouring water into sand dunes, as the market quickly dry. This trend has continued for 12 months until the print to 1.26 million, the printing of the frequency slowed down only gradually, but still continue to print the current print run has reached 1.65 million (in January 2004 the first 55th printing). Followed by a growing number of letters from readers. How old juveniles from the children, the elderly and 7 late, many parents and large, students regarded us as friends, frankly pour their own face, confused, want to hear our views and recommendations of the (many people prefer the traditional writing letters, and not need to have access to the Internet e-mail, but we can use less time-consuming e-mail. In this regard, we are deeply sorry). Letters are significant differences between readers of education, from school children to university professors have. Apart from a few readers simply to express their appreciation and gratitude, the majority of readers were to explore and consulting and quality training and personal development-related issues. We have received from the thousands of letters from readers, and with tens of thousands of readers face to face, as well as in newspapers and on the Internet to see spontaneous discussion of readers of view, \excellent reader. This large group flaunt Chinese emphasis on education, aggressive nature. They are highly sensitiv they are not limited by prejudice, their understanding and concern about the
their friends and relatives to share their experiences of generosity and hospitality of others (a few of the dozens of local books given away are common) ... ... a long time to have deeply impressed us, and caused the Chinese media's attention, and the Western mainstream media's continued interest and positive reports (see \Authority of the central educational institutions has been the attitude of our positively - from October 2001 to April 2002, the Ministry of Basic Education, Ministry of the CYL Central Children, the National Women's Federation for Women and Children, Central Institute of Educational Sciences, Education Next Generation Working Committee of the Department of Family Education Center and other institutions,GHD, we were invited to address the three quality education forum. Our child-care experiences were also chosen a selection of these institutions, \Distributors Association of Chinese books and two of \Readers praise, media campaigns, educational institutions, support and uphold the legitimate sales of the book's various bookstores ... ... factors form a powerful force, the \so published more than three years time, the reader's E-mail is still flooded. The e-mail and we exchange activities throughout the thousands of questions received a note (most of us missed the spot to answer), on behalf of countless souls desire to progress, let us day and night caring, nose to the grindstone. We reply to the reader as a way of repaying the community, hope to provide readers with valuable suggestions (especially for those readers deep distress or hardship). But after all, e-mail information provided is limited, therefore, how to avoid misleading the reader, it becomes necessary to reflect on the issue. Often, in order to raise the minimum side effects, the most practical suggestion, we wrote back hands of time to consider how far there is no reply over the time spent. Without careful No, seriously where it is too slow, though we often stay up until 2-3 am wrote back to point, the backlog of mail is still increasing. Of course, piracy is rampant and is one reason why more letters. Some readers can not buy genuine letters that had first bought a pirated, we can refuse to sign the book in piracy, but could not bear to refuse to reply to the pirated book readers, because they honestly can not refuse. So, wait for the reply of the readers even more up, including the borrowing of view of readers, and stood for several days went to bookstores to read the book for students.
primer Readers, keep you waiting, another of this brainchild, to answer all kinds of advice
we will back plans for each letter managed to support the 4 months, the Zhaojiabuzhu up. We finally realized the following three points: 1. Because everywhere at once, we do not have enough time to conduct one on one communication with readers, even ruled out the interviews, telephone and letter after the e-mail. 2. Even if the e-mail, also concentrated solely in filling a separate return and selective response. (Incidentally, to explain: Since September 2001 we have only one computer before, processed daily \a computer, in March 2002 and then updated on broadband mail software, get a separate reply to the reader greatly increased. However,Gucci Outlet, we give priority to the backlog of letters written in reply to a message, they often receive a \\months, was discovered by chance, and re-enable. At this point, but also to even the \\Since our \This \kind of problem. For example, from the Harvard campus Tinger about the colorful life and social practice, to answer readers are most concerned about: \\\How to use \Liu Yiting \December 16, 2000, we opened up a long \For those who need to talk about a book devoted to a more thorough, we first \
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万能的朋友圈！谁知道这个是什么石头？
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万能的朋友圈！谁知道这个是什么石头？
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TA的每日心情开心 00:20签到天数: 294 天[LV.8]以坛为家I
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无价之宝！
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去边挪个？
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是建公路的沥青吧？
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这石头可能是流金石
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按照石头光泽润滑睇来
TA的每日心情开心 19:36签到天数: 142 天[LV.7]常住居民III