NWA 13036 - 月球陨石（长石角砾岩），切片 - 高度: 2 cm - 宽度: 0.8 cm - 0.8 g - (1)
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NWA 13036 是一块来自摩洛哥 Talhat Lihoudi 地区的月球 Feldspathic Melt Breccia 陨石切片，重量 0.8 g，尺寸 2.0 cm × 0.8 cm × 0.2 cm。
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卖家的描述
Northwest Africa 13036 (NWA 13036)
Morocco
Purchased: 2020 Sep
Classification: Lunar (feldsp. melt breccia)
History: A group of stones found together about 30 km north of Tichia, southern Morocco at 24.502°N, 13.767°W (within the Talhat Lihoudi dense collection area) was initially offered by the finders for purchase jointly by Adam Aaronson and Ahmad Bouragaa in December 2019. Although a sample was provided for analysis, the owners and potential buyers of the stones could not reach an agreement. Subsequently in September 2020 Rachid Chaoui and Jaouad Chaoui purchased the entire batch of stones from the finders, and provided the additional type material and GPS coordinates of the find site.
Physical characteristics: The stones (total weight 1815 g) lack fusion crust but have a dark external weathering patina. Interiors are light gray and very fine grained with visible tiny rounded vesicles.
Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Very fine grained specimen dominated by microvesicular, melt-textured crystalline material surrounding sparse small feldspathic lithic clasts. Minerals are anorthite, olivine, orthopyroxene, subcalcic augite, chromite, troilite and secondary barite.
Geochemistry: Olivine (Fa26.9-36.8, FeO/MnO = 73-93, N = 10), low-Ca pyroxene (Fs17.4-18.4Wo3.4-5.1, FeO/MnO = 50-58, N = 2), subcalcic augite (Fs23.0Wo20.3, FeO/MnO = 42), anorthite (An95.9-97.5Or0.1, N = 4).
Classification: Lunar (feldspathic melt breccia). Although these stones were found in the same general region as lunar meteorite stone Talhat Lihoudi, they are distinct from it in both texture and mineral compositions.
Specimens: 21.6 g including a polished endcut at UWB; remainder with R. Chaoui and J. Chaoui.
Place of purchase: Zagora
Date: P 2020 Sep
Latitude: 24.502°N
Longitude: 13.767°W
Mass (g): 1815
Pieces: many
Class: Lunar (feldsp. melt breccia)
Shock stage: high
Weathering grade: low
Fayalite (mol%): 26.9-36.8
Ferrosilite (mol%): 17.4-18.4; 23.0
Wollastonite (mol%): 3.4-5.1; 20.3
Classifier: A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g): 21.6
Type spec location: UWB
Main mass: R. Chaoui/J. Chaoui
Comments: Work names M2221, AB85, RC140.1; submitted by A. Irving
Northwest Africa 13036 (NWA 13036)
Morocco
Purchased: 2020 Sep
Classification: Lunar (feldsp. melt breccia)
History: A group of stones found together about 30 km north of Tichia, southern Morocco at 24.502°N, 13.767°W (within the Talhat Lihoudi dense collection area) was initially offered by the finders for purchase jointly by Adam Aaronson and Ahmad Bouragaa in December 2019. Although a sample was provided for analysis, the owners and potential buyers of the stones could not reach an agreement. Subsequently in September 2020 Rachid Chaoui and Jaouad Chaoui purchased the entire batch of stones from the finders, and provided the additional type material and GPS coordinates of the find site.
Physical characteristics: The stones (total weight 1815 g) lack fusion crust but have a dark external weathering patina. Interiors are light gray and very fine grained with visible tiny rounded vesicles.
Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Very fine grained specimen dominated by microvesicular, melt-textured crystalline material surrounding sparse small feldspathic lithic clasts. Minerals are anorthite, olivine, orthopyroxene, subcalcic augite, chromite, troilite and secondary barite.
Geochemistry: Olivine (Fa26.9-36.8, FeO/MnO = 73-93, N = 10), low-Ca pyroxene (Fs17.4-18.4Wo3.4-5.1, FeO/MnO = 50-58, N = 2), subcalcic augite (Fs23.0Wo20.3, FeO/MnO = 42), anorthite (An95.9-97.5Or0.1, N = 4).
Classification: Lunar (feldspathic melt breccia). Although these stones were found in the same general region as lunar meteorite stone Talhat Lihoudi, they are distinct from it in both texture and mineral compositions.
Specimens: 21.6 g including a polished endcut at UWB; remainder with R. Chaoui and J. Chaoui.
Place of purchase: Zagora
Date: P 2020 Sep
Latitude: 24.502°N
Longitude: 13.767°W
Mass (g): 1815
Pieces: many
Class: Lunar (feldsp. melt breccia)
Shock stage: high
Weathering grade: low
Fayalite (mol%): 26.9-36.8
Ferrosilite (mol%): 17.4-18.4; 23.0
Wollastonite (mol%): 3.4-5.1; 20.3
Classifier: A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g): 21.6
Type spec location: UWB
Main mass: R. Chaoui/J. Chaoui
Comments: Work names M2221, AB85, RC140.1; submitted by A. Irving
详细资料
物品件数
1
陨石类型
NWA 13036 - meteorite Lunar (feldsp. breccia), slice
重量
0,8 g
国家
摩洛哥
高度
2 cm
宽度
0,8 cm
深度
0,2 cm
