一件漂亮的月亮元素作品，带有一些融合的风格。 NWA 17700 月球陨石（角闪岩熔融角砾岩碎裂岩） - 110 g - (1)

专家

由Francesco Moser精选

Northwest Africa 17700 (NWA 17700) (Northwest Africa) Purchased: 2025 Apr Classification: Lunar meteorite (troctolite melt breccia) History: The meteorite was purchased from a dealer in Temara, Morocco. Physical characteristics: Many grayish rocks some with minor fusion crust. Petrography: Melt breccia predominantly composed of up to 4 mm sized anorthosite and melt clasts plus up to 0.8 mm sized olivine aggregates and fewer Ca-rich pyroxene grains set in abundant plagioclase-rich melt rock matrix. The matrix is partly glassy, partly recrystallized to small often lath-shaped plagioclase crystals. Olivine aggregates mostly consist of numerous smaller subgrains. Accessories include ilmenite, chromite, and troilite. No metal detected. Geochemistry: olivine: Fa25.2±0.6 (Fa24.2-25.8, FeO/MnO=82±9; n=8); Ca-pyroxene: Fs22.8±1.1Wo11.6±3.0 (Fs21.7-24.2Wo9.2-18.0, FeO/MnO=48±4, n=7); calcic plagioclase: An96.3±0.3 (An95.8-96.7, n=7)

编号 99856729

已不存在

一件漂亮的月亮元素作品，带有一些融合的风格。 NWA 17700 月球陨石（角闪岩熔融角砾岩碎裂岩） - 110 g - (1)

翻译到简体中文

将由Google翻译翻译

Northwest Africa 17700 (NWA 17700)

(Northwest Africa)

Purchased: 2025 Apr

Classification: Lunar meteorite (troctolite melt breccia)

History: The meteorite was purchased from a dealer in Temara, Morocco.

Physical characteristics: Many grayish rocks some with minor fusion crust.

Petrography: Melt breccia predominantly composed of up to 4 mm sized anorthosite and melt clasts plus up to 0.8 mm sized olivine aggregates and fewer Ca-rich pyroxene grains set in abundant plagioclase-rich melt rock matrix. The matrix is partly glassy, partly recrystallized to small often lath-shaped plagioclase crystals. Olivine aggregates mostly consist of numerous smaller subgrains. Accessories include ilmenite, chromite, and troilite. No metal detected.

Geochemistry: olivine: Fa25.2±0.6 (Fa24.2-25.8, FeO/MnO=82±9; n=8); Ca-pyroxene: Fs22.8±1.1Wo11.6±3.0 (Fs21.7-24.2Wo9.2-18.0, FeO/MnO=48±4, n=7); calcic plagioclase: An96.3±0.3 (An95.8-96.7, n=7)