编号 107915768

已不存在
Gadamis 004 - 「Apollo 16 Lunar」(月球铁质辉长岩,断裂性岩石) - 29.46 g
竞投已结束
5天前

Gadamis 004 - 「Apollo 16 Lunar」(月球铁质辉长岩,断裂性岩石) - 29.46 g

This is an exquisite 29.46 gram end cut of Gadamis 004, one of the most interesting and rare classified lunar meteorites so far (together with NWA 13951, the famous “Starry Night” lunar). Gadamis 004 originated as part of a 12.66 kg single stone found in the Libyan desert near the oasis of Ghadamis. An unusually anorthosite-rich Moon rock, Gadamis 004 is not your average lunar feldspathic breccia. What makes Gadamis 004 particularly fascinating is its unusually high abundance of anorthitic plagioclase. Microprobe analysis shows that cataclastic anorthitic plagioclase accounts for approximately 98–99% of the meteorite. The plagioclase itself is extremely calcium-rich, with a composition of approximately An96.0Ab3.8Or0.2, making it almost pure anorthite!! Only around 1–2% of the rock consists of olivine and pyroxene, occurring mostly as tiny blebs enclosed within the plagioclase. The Meteoritical Bulletin classifies the meteorite as lunar ferroan anorthosite, cataclastic, noting that the compositions of its olivine, pigeonite and plagioclase fall within the Ferroan Anorthosite (FAN) suite. Particularly significant is the observation that its exceptionally high anorthite content and cataclastic texture are very similar to cataclastic ferroan anorthosites represented among the Apollo 16 samples. This makes Gadamis 004 a remarkable geological sample of the lunar highlands (the bright regions of the Moon), dominated by the ancient, feldspar-rich crust that formed early in the Moon's history. The meteorite's texture tells another fascinating story. The original stone contains centimetre-sized anorthosite clasts separated by darker, fine-grained cataclastic zones, evidence of intense mechanical fragmentation and shock processing on the lunar surface or within the shallow lunar crust. After being excavated from the Moon by a major impact, a fragment of this ancient lunar crust was ejected at more than 2.4 km/s (the Moon's surface escape velocity), left the Moon's gravitational influence, and travelled through space before eventually being captured by Earth's gravitational field and landing in the Libyan desert. Shown in the last three pictures are in-situ pictures of the Apollo 16 lunar samples collected in April 1972. This lunar meteorite is as close to those samples as anything we have in private collections so far. I am a member of the Meteoritical Society (#7743) and the Global Meteorite Association (#G0129) and have been collecting meteorites for more than 16 years.

编号 107915768

已不存在
Gadamis 004 - 「Apollo 16 Lunar」(月球铁质辉长岩,断裂性岩石) - 29.46 g

Gadamis 004 - 「Apollo 16 Lunar」(月球铁质辉长岩,断裂性岩石) - 29.46 g

This is an exquisite 29.46 gram end cut of Gadamis 004, one of the most interesting and rare classified lunar meteorites so far (together with NWA 13951, the famous “Starry Night” lunar).

Gadamis 004 originated as part of a 12.66 kg single stone found in the Libyan desert near the oasis of Ghadamis. An unusually anorthosite-rich Moon rock, Gadamis 004 is not your average lunar feldspathic breccia. What makes Gadamis 004 particularly fascinating is its unusually high abundance of anorthitic plagioclase. Microprobe analysis shows that cataclastic anorthitic plagioclase accounts for approximately 98–99% of the meteorite. The plagioclase itself is extremely calcium-rich, with a composition of approximately An96.0Ab3.8Or0.2, making it almost pure anorthite!! Only around 1–2% of the rock consists of olivine and pyroxene, occurring mostly as tiny blebs enclosed within the plagioclase.

The Meteoritical Bulletin classifies the meteorite as lunar ferroan anorthosite, cataclastic, noting that the compositions of its olivine, pigeonite and plagioclase fall within the Ferroan Anorthosite (FAN) suite. Particularly significant is the observation that its exceptionally high anorthite content and cataclastic texture are very similar to cataclastic ferroan anorthosites represented among the Apollo 16 samples. This makes Gadamis 004 a remarkable geological sample of the lunar highlands (the bright regions of the Moon), dominated by the ancient, feldspar-rich crust that formed early in the Moon's history.

The meteorite's texture tells another fascinating story. The original stone contains centimetre-sized anorthosite clasts separated by darker, fine-grained cataclastic zones, evidence of intense mechanical fragmentation and shock processing on the lunar surface or within the shallow lunar crust.

After being excavated from the Moon by a major impact, a fragment of this ancient lunar crust was ejected at more than 2.4 km/s (the Moon's surface escape velocity), left the Moon's gravitational influence, and travelled through space before eventually being captured by Earth's gravitational field and landing in the Libyan desert.

Shown in the last three pictures are in-situ pictures of the Apollo 16 lunar samples collected in April 1972. This lunar meteorite is as close to those samples as anything we have in private collections so far.

I am a member of the Meteoritical Society (#7743) and the Global Meteorite Association (#G0129) and have been collecting meteorites for more than 16 years.

竞投已结束
Francesco Moser
专家
估价  € 1,400 - € 1,600

类似物品

  • ​
    ​
    ​
  • ​
    ​
    ​
  • ​
    ​
    ​
  • ​
    ​
    ​
  • ​
    ​
    ​
  • ​
    ​
    ​
  • ​
    ​
    ​
  • ​
    ​
    ​
  • ​
    ​
    ​
  • ​
    ​
    ​

类别为您准备的

矿石及陨石

  • ​
    ​
    ​
  • ​
    ​
    ​
  • ​
    ​
    ​
  • ​
    ​
    ​
  • ​
    ​
    ​
  • ​
    ​
    ​
  • ​
    ​
    ​
  • ​
    ​
    ​
  • ​
    ​
    ​
  • ​
    ​
    ​
设置搜索提醒
设置搜索提醒,以便在有新匹配项目时随时收到通知。

该物品出现在

                                        
                                                                                                    
                    
                                        
                                                                                                    
                    
                                        
                                                                                                    
                    
                                        
                                                                                                    
                    

如何在Catawiki上购买

详细了解我们的买家保障

      1. 发现奇珍异品

      饱览数以千计的专家精选的稀奇物品。查看每件稀奇物品的照片、详情和估价。 

      2. 设置最高出价

      找到您喜欢的物品并设置最高出价。您可以关注拍卖直到最后,也可以让系统为您出价。您只需设置可接受的最高出价。 

      3. 安全支付

      当您付款拍下心仪的稀奇物品后,我们会确保货款的安全,直至物品安然交付与您。我们使用受信赖的支付系统来处理所有交易。 

有类似的东西要出售吗?

无论您是在线拍卖的新手还是专业销售,我们都可以帮助您为您的独特物品赚取更多收入。

出售您的物品