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石铁陨石
价 格: 价格商议 卖家承担运费
数 量: 1 ( 已售) 担保费: 各出一半
类 别: 奇石观赏石 所在地: 广东省 广州市
人 气:   发 布: 2018-11-09
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详细描述

藏品名称:石铁陨石    藏品类别:陨石

藏品价格:RMB 议价    藏品规格:18000克

藏品描述展示

     陨石指坠落于地面的陨星残体,由铁、镍、硅酸盐等矿物质组成,亦称陨星石。也指含石质较多或全部为石质的陨星。在含碳量高的陨石中还发现了大量的氨、核酸、脂肪酸、色素和11种氨基酸等有机物,因此,人们认为地球生命的起源与陨石有相当大的关系。

     人们在观察中发现,在太阳系的行星,火星和木星的轨道之间有一条小行星带,它就是陨石的故乡,这些小行星在自己轨道运行,并不断地发生着碰撞,有时就会被撞出轨道奔向地球,在进入大气层时,与之摩擦发出光热便是流星。流星进入大气层时,产生的高温,高压与内部不平衡,便发生爆炸,就形成陨石雨。未燃尽者落到地球上,就成了陨石。人们先后在美国亚利桑那州发现了一个深170米,直径1240米的陨坑。在南极还有直径达300公里的大陨坑。在大西洋中部竟发现了直径达1000多公里的巨形陨坑。

     石铁陨石由铁、镍和硅、酸、盐矿物组成,铁镍金属含量30至65,这类陨石约占陨石总量的1.2,故商业价值最高。该类陨石含铁70%以上,其次为硅、铝、镍,主要矿物有锥纹石、镍纹石、合纹石等,次要矿物为陨硫铁、铬铁矿、石墨等。石铁陨石根据起内部的主要成分和构造特点分为:橄榄石石铁陨石(PAL)、中铁陨石(MES)、古铜辉石--鳞石英石铁陨石。

此藏品是袁先生所收藏


Collection name: stony iron meteorite collection: meteorite

Collection price: RMB bargaining stock specification: 18000 grams

Collection Description display

Meteorites refer to meteorite remnants falling on the ground, composed of iron, nickel, silicate and other minerals, also known as meteorites. Also refers to meteorites containing more or more stony rocks. A large number of organic compounds, such as ammonia, nucleic acid, fatty acid, pigment and 11 amino acids, have been found in the high carbon meteorites. Therefore, it is believed that the origin of life on the earth is closely related to meteorites. Observations show that there is an asteroid belt between the orbits of the planets of the solar system, Mars and Jupiter. It is the home of meteorites. These asteroids move in their own orbits and collide constantly. Sometimes they are knocked out of their orbits and run toward the Earth. When they enter the atmosphere, they rub against it to give off light and heat. It's meteor. When a meteor enters the atmosphere, it produces high temperature, high pressure and internal imbalance, and then explodes, forming meteorite rain. When an unburned person falls on the earth, it becomes a meteorite. A crater 170 meters deep and 1240 meters in diameter was found in Arizona. In the Antarctic, there is a large crater with a diameter of 300 kilometers. A giant crater with a diameter of more than 1000 kilometers has been found in central the Atlantic.

Iron-nickel meteorites are composed of iron, nickel, silicon, acid and salt minerals, with iron-nickel metal content ranging from 30 to 65. These meteorites account for about 1.2% of the total meteorites, so they have the highest commercial value. This kind of meteorite contains more than 70% iron, followed by silicon, aluminum and nickel. The main minerals are pyramids, nickel-rutile, talc and so on. The minor minerals are pyrite, chromite and graphite. According to the main composition and structural characteristics of the meteorite, it can be divided into olivine iron meteorite (PAL), medium iron meteorite (MES) and palaeopyroxene-lepidolite iron meteorite.

This collection is collected by Mr. Yuan.


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