夜光石_百度百科
夜光石就是萤石。夜明珠在我国古代民间又名叫“夜光璧、夜光石、放光石”相传是世界上极为罕见的夜间能发出光芒的奇石。有专家指出「」事实上就是能发光的萤石。我国虽然是萤石矿产大国，但夜晚能发光的萤石并不多，所以就显得珍贵和价值连城了。英国著名学者在巨著《》中记载，古代中国人喜爱夜明珠，就是因为认为夜明珠有灵性，是镇山之宝。所以人们对它看得很珍贵之宝物。它能镇宅，能除掉一切邪恶。印度一些人把夜明珠称为“蛇眼石”,日本学家玲木敏于1916年编《宝石志》称夜明珠为神圣的宝石。
夜光石简介
夜明珠究竟是一种什么样性质的奇石?古今中外的说法颇不一致。
据一些专家考证，夜明珠并不是象某些人所吹嘘的那样神秘，而是几种特殊的矿物或岩石,经过人们加
工后才变成圆珠形。夜明珠发出的光，并不像神话中传说的那样能把“龙宫照得如同白昼”。
但在吸收热能后（光照或热水淋烫）便会发出光亮，在的暗室或黑夜中，将它置于较高的自然常温中欣赏，10分钟后，人们在距离它半英尺的地方就能清楚地见到它逐渐主动地发出震撼而激动人心的通体透白，如一轮明月。
为什么夜明珠在夜间会发出较强而又绮丽的亮光呢？对此众说纷纭。
一些宝石学家认为，因为夜明珠的萤石成分中混入了硫化砷，所以有“灵性”，而白天这两种物质发生“激化活化剂”到晚上则释放出能量，变成美丽的夜光。并且能在一定的时间内持续发光，甚至永久发光。
经实验，如夜明珠白天不见天日，夜晚则发光时间较迟，反之则较快，是否激化活化剂灵性在显现呢？这要见仁见智了。以上只是一部分专家的看法，不一定全面准确。
夜明珠还有许多奥秘，至今还没有被专家们了解，但其中的发光物质究竟是什么原因，至今还不太清楚。总之：夜明珠至今仍是尚未彻底揭开的一个千古奇谜。
夜光石内含有大量的磷,所以会发光!!
据宝石专家栾秉敖在其《怎样鉴定古玉器》一书中介绍“”的发光现象，同矿物中电子的移动有关，它与矿物含有某些元素杂质以及晶体缺陷的关系更大。
当能量（如光能）作用于某些杂抽元素，其中一部分电子被“激发”从低能带跃入高能带，而当电子从高能带再返回低能带时，便将获得的能量以可见光的形式释放出来，从而形成了“夜明珠”。
夜光石夜明珠
夜光石什么是夜明珠
“”是一种名叫“荧石”的普通矿石，一种并不稀罕的工业原料，主要成分为二氟化钙，是生产氢氟酸的一种化工原料。夜明珠是晶体要加工成一定形状有一些难度，但加工成本也不大。夜明珠的主要材料有萤石、方解石和一些钻石，其中萤石最为常见。
夜光石发光原理
物理学中，夜明珠的发光原理是由具有磷光物质的石头在受之后，吸收外来能量，然后又在黑暗中将这些能量释放出来，形成银白的光华；这与矿物晶体中微量杂质有密切关系。
夜光石夜明珠价值
夜明珠根本算不上宝石，其价值根本无法与单晶体的钻石、、、翡翠等相比。之所以历来人们对其有一种神秘感，一是由于古书上有很多传奇记载，二是“会发光”。
“会发光”并不神奇，含锰解理石、含稀土矿石、钡镍矿等都会发光。“荧石”夜明珠在吸收外来光后，会发出荧光或磷光。随着现在科技的发达，要“人造夜明珠”就像人造大理石、、人造水晶一样容易，在普通矿石中加入一些发光物质，即会发光，“就像以前的钟表夜光一样”。
夜光石对人体是否有害
专家说，假的夜明珠经过强的放射源照射之后，会发出荧光，有的可以保持三五个月甚至一年。许多发光矿物质都含有放射性，如果没经过放射性安全检测，最好不要靠近或长期接触。
企业信用信息请问这块石头是什么质地，价值大约多少_百度知道陨石的价值你知道多少？ - 今日头条()
陨石是来自地球以外太阳系其他天体的碎片，绝大多数来自位于火星和木星之间的小行星，少数来自月球(40块）和火星（40块）。全世界已收集到4万多块陨石样品，它们大致可分为三大类：石陨石（主要成分是硅酸盐)、铁陨石（铁镍合金）、和石铁陨石（铁和硅酸盐混合物）。大部分陨石是球粒陨石（占总数的91.5％），其中普通球粒陨石最多（占总数的80％）。球粒陨石的特点是其内部含有大量毫米到亚毫米大小的硅酸盐球体（见图）。球粒陨石是太阳系内最原始的物质，是从原始太阳星云中直接凝聚出来的产物，它们的平均化学成分代表了太阳系的化学组分。世界上最大的石陨石是1976年陨落在我国吉林省的吉林普通球粒陨石。纳米比亚的Hoba铁陨石 （重60吨）无球粒陨石、石铁陨石和铁陨石统称为分异陨石，它们是由球粒陨石经高温熔融分异和结晶的产物，代表了小行星内部不同层次的样品。这些小行星的内部结构与地球相似，分三层，中心为铁核（铁陨石），中间为石铁混合幔层（石铁陨石），外部是石质为主的壳层（无球粒石陨石）。世界上最大的铁陨石是非洲纳米比亚的Hoba铁陨石，重60吨。在我国新疆的阿勒泰地区青沟县境内银牛沟发现的铁陨石，重约28吨，是世界第三大铁陨石。最近，世界各国科学家在南极地区和非洲沙漠地区收集到了大量的陨石样品，其中包括罕见和珍贵的月球陨石和火星陨石。在下不才，寥寥数笔，希望以此结识更多志同道合的藏友转载须征得本头条号作者同意，未经授权，不得转载。 相识即缘，也希望有缘的藏友可以联系到我，让我有幸一睹其藏品之风采，并可爱之藏之。欢迎广大藏友积极参与交流。 咨询ID： ←长按可复制（每天推送最新古玩咨询）
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老师帮忙看下这是什么石头，看着像汉白玉。能值多少钱？
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7天无理由退货，购物无忧这个是什么石头？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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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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