精品推荐-玻璃陨石

玻璃陨石是某种石陨石降落过程中融化的液质冷却后的产物。玻璃陨石的母石为淡绿色和黑色两种，因此，玻璃陨石的降落都是与母石共同进行的。玻璃陨石为半透明的玻璃质体，有微弱磁性，颜色为墨绿色、绿色，淡绿色，棕色，褐色，深褐色，还有少见的朱砂色。玻璃陨石是在高空、高温、高压和高速下形成的，所以它有明显的形成特征：内部高纯度无杂质，通体布满致密的小气泡，外部有融壳，融壳上有流纹，外部和融壳下有时会产生大的气印。玻璃陨石主要出现在北美、科特迪瓦等地区。玻璃陨石在我国不多见，主要分布在新疆、西藏、海南、甘肃一带。中国古代曾称它为“雷公墨”。早在1000多年前，中国唐朝刘恂所著《岭表录异》一书中就有玻璃陨石的记载：“雷州骤雨后，人于野中得石如黳石，谓之雷公墨。和之铮然，光莹可爱。”据1844年英国生物学家达尔文描述，在澳大利亚获得一块钮扣状玻璃质石块，认为是黑曜岩（达尔文玻璃），以后在世界范围内发现这种类似玻璃质石块，通称为“玻璃陨石”。玻璃陨石由于质地坚韧，可雕刻成手饰、胸饰，在珠宝市场上价格十分昂贵。

一般认为是陨星事件造成的，大陨星冲撞使地表及陨星的碎裂物很快融熔、迅速冷却结晶而成。有球状、哑铃状、液滴状、纽扣状和不规则的块体。易碎，破裂后多具贝壳状断口。大陆上发现的玻璃陨石的大小，从几毫米至十几厘米不等，反射光下发暗，但薄的边缘透亮，并具有不同的颜色，从黄色到绿色，从橄榄褐色到暗褐色。比重一般为2.3～2.6，折光率为 1.48 ～1.62。其组成，同一区域比较一致，不同区域差异很大。但SiO2含量都很高，实际上是100％ 的玻璃。微玻璃陨石只在海洋沉积物中有发现。其大小都在几毫米以下，与附近大陆上的玻璃陨石具有同样的年龄、组成和形状。

此玻璃陨石通体呈黑色，油亮且有光泽，布满致密的小气泡，外部有融壳，融壳上有流纹， 外部和融壳下有时会产生大的气印。质地上乘，是难得的稀世珍品，它对天文的研究和探索有着 重大的意义，更具有极大的收藏价值。

Glass meteorite is the product of the cooling of melted liquid during the landing of a certain stone meteorite. The mother stones of glass meteorites are light green and black, so the glass meteorites all landed together with the mother stones. Glass meteorites are translucent vitreous bodies with weak magnetism, and their colors are dark green, green, light green, brown, brown, dark brown, and rare cinnabar color. Glass meteorite was formed at high altitude, high temperature, high pressure and high speed, so it has obvious formation characteristics: high purity and no impurities inside, dense small bubbles all over the whole body, melting shell on the outside, flow lines on the melting shell, and sometimes large gas marks on the outside and under the melting shell. Glass meteorites mainly appear in North America, Cô te d 'Ivoire and other regions. Glass meteorites are rare in China, mainly distributed in Xinjiang, Tibet, Hainan and Gansu. In ancient China, it was called "Lei Gongmo". As early as more than 1,000 years ago, there was a record of glass meteorites in Ling Biao Lu Yi written by Liu Yao in Tang Dynasty of China: "After the torrential rain in Leizhou, people get stones like craggy stones in the wild, which is called Lei Gongmo. It' s harmonious, and it' s lovely. " According to Darwin, a British biologist in 1844, a button-shaped vitreous stone was obtained in Australia, which was considered obsidian (Darwin glass), and this kind of similarity was found all over the world.

It is generally believed that it is caused by meteorite events, and the large meteorite impact makes the fragments of the earth's surface and meteorites melt quickly and cool and crystallize rapidly. There are spherical, dumbbell-shaped, droplet-shaped, button-shaped and irregular blocks. Fragile, with many conchoidal fracture after rupture. The size of glass meteorites found on the mainland varies from a few millimeters to more than ten centimeters, and the reflected light is dark, but the thin edges are transparent and have different colors, ranging from yellow to green, from olive brown to dark brown. The specific gravity is generally 2.3 ~ 2.6, and the refractive index is 1.48 ~ 1.62. Its composition is consistent in the same region, but varies greatly in different regions. But the content of SiO2 is very high, which is actually 100% glass. Microglass meteorites are only found in marine sediments. They are all below a few millimeters in size, and have the same age, composition and shape as glass meteorites on the nearby continent.

This glass meteorite is black, shiny and shiny, covered with dense small bubbles, with a melting shell on the outside, with flow patterns on the melting shell, and sometimes large gas marks are produced on the outside and under the melting shell. Excellent quality is a rare treasure, which is of great significance to astronomical research and exploration, and has great collection value.