洛德拉陨石。NWA 17904。 这块陨石是一块经退火的角砾岩。 - 9.4 g
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Lodranite 陨石 NWA 17904，一种回火角砾岩陨石，原产于西北非洲的 NWA，重量 9.40 g。
AI辅助摘要
卖家的描述
Northwest Africa 17904 (NWA 17904)
Mauritania
分类：原始无包晶陨石（洛德兰石）
History: The meteorite was purchased by Mohamed Ali Loud in July 2025 from a dealer in Nouadhibou, Mauritania .
Physical characteristics: Many dark brownish rocks with some fusion crust.
Petrography: The meteorite is an annealed breccia predominantly composed of large of to 7 mm sized olivine and low Ca-pyroxene grains separated by fine-grained regions consisting of 30 to 500 µm sized olivine, low-Ca pyroxene, and diopside crystals often meeting in 120 degree triple junctions. Minor phases include whitlockite, Ti-free chromite, FeS, and partly altered FeNi-metal. No feldspar detected.
Geochemistry: olivine: Fa12.0±0.5 (Fa11.3-12.7, FeO/MnO=51±6, n=10); low-Ca pyroxene: Fs11.8±0.2Wo1.2±0.1 (Fs11.5-12.0Wo1.1-1.3, FeO/MnO=31±2, n=10); Ca-pyroxene: Fs4.1±0.2Wo47.6±0.4 (Fs3.8-4.6Wo47.1-48.2, FeO/MnO=27±6, n=10)
Shock stage: low
Weathering grade: moderate
Classifier: A. Greshake, MNB
This lot comes with certificate ofauthenticity, thanks for your interest.
Northwest Africa 17904 (NWA 17904)
Mauritania
分类：原始无包晶陨石（洛德兰石）
History: The meteorite was purchased by Mohamed Ali Loud in July 2025 from a dealer in Nouadhibou, Mauritania .
Physical characteristics: Many dark brownish rocks with some fusion crust.
Petrography: The meteorite is an annealed breccia predominantly composed of large of to 7 mm sized olivine and low Ca-pyroxene grains separated by fine-grained regions consisting of 30 to 500 µm sized olivine, low-Ca pyroxene, and diopside crystals often meeting in 120 degree triple junctions. Minor phases include whitlockite, Ti-free chromite, FeS, and partly altered FeNi-metal. No feldspar detected.
Geochemistry: olivine: Fa12.0±0.5 (Fa11.3-12.7, FeO/MnO=51±6, n=10); low-Ca pyroxene: Fs11.8±0.2Wo1.2±0.1 (Fs11.5-12.0Wo1.1-1.3, FeO/MnO=31±2, n=10); Ca-pyroxene: Fs4.1±0.2Wo47.6±0.4 (Fs3.8-4.6Wo47.1-48.2, FeO/MnO=27±6, n=10)
Shock stage: low
Weathering grade: moderate
Classifier: A. Greshake, MNB
This lot comes with certificate ofauthenticity, thanks for your interest.
详细资料
陨石名称
Lodranite Meteorite. NWA 17904.
陨石类型
The meteorite is an annealed breccia.
补充物
Do not reserve price.
重量
9,4 g
原产地（地区/城市）
NWA
国家
NWA
