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查看翻譯Tazizilet 002 - 隕石球粒隕石 OC4-熔化角礫岩 - - 高度: 47 mm - 闊度: 20 mm - 4.54 g
編號 90943801
No reserve
Part slice of Tazizilet 002 : chondritic melt material OC4 showing nice metal inclusions/VEINS and encapsulated chondrules
Fully mirror polished.
Size : 47*20*1,5mm
Wight : 4,54 gr
Check metbull link for detail and history : https://www.lpi.usra.edu/meteor/metbull.php?code=80862
Writeup from MB 112:
Tazizilet 002 17.47662662, 9.545471183
Agadez, Niger
Find: 2022 Oct
Classification: Ordinary chondrite (type 4, melt breccia)
History: Two individual masses of 1173 and 1089 g were found in October 2022 by gold prospectors using a metal detector in the vicinity of Mount Amzeguer, Niger. In November 2022, both specimens were acquired by Sylvain Leroux in Agadez, Niger, directly from the finder Ahmat, and kindly conveyed by Hassane Ousmane. Material for classification was send to A. Greshake (MNB) and H. Goethals and T. Leduc (RBINS).
Physical characteristics: Two dark brownish rocks lacking fusion crust.
Petrography: (A. Greshake, MNB; H. Goethals and T. Leduc, RBINS) Metal-rich chondritic breccia composed of cm sized mostly angular chondritic clasts separated from each other by partially melted and finely recrystallized portions containing abundant thin metal veins. Chondritic regions contain well-defined, mostly flattened and separated chondrules (apparent diameter about 600 µm) of a great variety of types including PO, PP, POP, GOP, RP, and C. Predominant chondrule minerals are forsteritic olivine, magnesian orthopyroxene typically overgrown by Ca-rich pyroxene rims plus sodic plagioclase. Interchondrule matrix contains abundant Cl-apatite, chromite, FeNi metal, and troilite. No secondary plagioclase detected. FeNi metal is significantly more abundant in melt rock regions compared to chondritic clasts.
Geochemistry: olivine: Fa8.4±0.1 (Fa8.3-8.7, FeO/MnO=16-19, n=10), orthopyroxene: Fs8.8±0.3Wo0.6±0.1 (Fs8.4-9.0Wo0.8-1.1, FeO/MnO=10-13, n=10); augite: Fs4.6±0.3Wo38.6±1.4 (Fs3.9-5.0Wo36.4-41.5, FeO/MnO=5-9, n=10)
Classification: OC4-melt breccia. Likely related to Northwest Africa 15468 and pairs.
Specimens: 69 g including one polished thin section at MNB; two polished discs at RBINS; remainder held by Mr. Sylvain Leroux
Cut and polished by La Pierrerie de l'Aïr
Shipped by La Pierrerie de l'Aïr, from Belgium.
Tracking and insurance included in shipping costs.
I'm a GMA member #G0106
No reserve
Part slice of Tazizilet 002 : chondritic melt material OC4 showing nice metal inclusions/VEINS and encapsulated chondrules
Fully mirror polished.
Size : 47*20*1,5mm
Wight : 4,54 gr
Check metbull link for detail and history : https://www.lpi.usra.edu/meteor/metbull.php?code=80862
Writeup from MB 112:
Tazizilet 002 17.47662662, 9.545471183
Agadez, Niger
Find: 2022 Oct
Classification: Ordinary chondrite (type 4, melt breccia)
History: Two individual masses of 1173 and 1089 g were found in October 2022 by gold prospectors using a metal detector in the vicinity of Mount Amzeguer, Niger. In November 2022, both specimens were acquired by Sylvain Leroux in Agadez, Niger, directly from the finder Ahmat, and kindly conveyed by Hassane Ousmane. Material for classification was send to A. Greshake (MNB) and H. Goethals and T. Leduc (RBINS).
Physical characteristics: Two dark brownish rocks lacking fusion crust.
Petrography: (A. Greshake, MNB; H. Goethals and T. Leduc, RBINS) Metal-rich chondritic breccia composed of cm sized mostly angular chondritic clasts separated from each other by partially melted and finely recrystallized portions containing abundant thin metal veins. Chondritic regions contain well-defined, mostly flattened and separated chondrules (apparent diameter about 600 µm) of a great variety of types including PO, PP, POP, GOP, RP, and C. Predominant chondrule minerals are forsteritic olivine, magnesian orthopyroxene typically overgrown by Ca-rich pyroxene rims plus sodic plagioclase. Interchondrule matrix contains abundant Cl-apatite, chromite, FeNi metal, and troilite. No secondary plagioclase detected. FeNi metal is significantly more abundant in melt rock regions compared to chondritic clasts.
Geochemistry: olivine: Fa8.4±0.1 (Fa8.3-8.7, FeO/MnO=16-19, n=10), orthopyroxene: Fs8.8±0.3Wo0.6±0.1 (Fs8.4-9.0Wo0.8-1.1, FeO/MnO=10-13, n=10); augite: Fs4.6±0.3Wo38.6±1.4 (Fs3.9-5.0Wo36.4-41.5, FeO/MnO=5-9, n=10)
Classification: OC4-melt breccia. Likely related to Northwest Africa 15468 and pairs.
Specimens: 69 g including one polished thin section at MNB; two polished discs at RBINS; remainder held by Mr. Sylvain Leroux
Cut and polished by La Pierrerie de l'Aïr
Shipped by La Pierrerie de l'Aïr, from Belgium.
Tracking and insurance included in shipping costs.
I'm a GMA member #G0106
礦物成分/ 隕石種類
Tazizilet 002 - 隕石球粒隕石 OC4-熔化角礫岩 -
補給品
OC4-IMB
重量
4,54 g
原產地（地區／城市）
尼日爾阿加德茲地區泰內雷
原產國
尼日
Height
47 mm
Width
20 mm
Depth
1,5 mm
52 個評價
(在過去的12個月有16 條評論)
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Schnell und korrekt abgewickelt sehr gut verpackt schönes Exemplar wie beschrieben.
查看翻譯Excellent service, nice specimen. Thanks !
查看翻譯A beautiful slice of meteorite, i receive it today all great thank you.
查看翻譯Conforme à la description Envoi rapide
查看翻譯Goede verpakking snel bezorgd dikke 10 groethuib
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