NWA 2995 is a visually stunning, Lunar meteorite from the Sahara. It has a total weight of only 538 grams, and is full of beautiful clasts. It has been classified as a Lunar Feldspathic Breccia.
The following description is part of the excerpt on NWA 2995 from Meteoritical Bulletin 90:
Northwest Africa 2995
Date of Find: 2005
Classification: Achondrite (Lunar feldspathic breccia)
History: A 538 g fully crusted and minimally weathered stone was purchased in Morocco by A. Aaronson in November 2005. >Petrography and Geochemistry: (T. Bunch and J. Wittke, NAU) The feldspathic fragmental breccia contains many highlands fine-grained lithologies. Norite: Orthopyroxene (Fs26.4Wo4; FeO/MnO = 66). Olivine basalt: Olivine (Fa87.2; FeO/MnO = 95), plagioclase (An84.7). Subophitic basalt: Ca pyroxene (Fs25–48Wo37.1–25.9), pigeonite (Fs27.8–31.7Wo15.4–9.3; FeO/MnO = 53), olivine (Fa36.3; FeO/MnO = 90), plagioclase (An97). Gabbro: Olivine (Fa34.7; FeO/MnO = 95), pigeonite (Fs28.2Wo8.9; FeO/MnO = 67), plagioclase (An94). KREEPy-like basalt: Plagioclase (Ab50Or17.4), K feldspar (Ab14.3Or83) in addition to silica, phosphate, and Fe-rich pyroxenes. Troctolite: olivine (Fa30.8; FeO/MnO = 94), plagioclase (An94.7). Granulitic impact melts: Olivine (Fa31), orthopyroxene (Fs25.2Wo3.4), plagioclase (An95). Anorthosite: (An92.7–96.8), glassy impact melts, coarse-grained mineral fragments, and a 0.350 mm-size grain of meteoritic Ni, Fe-metal (Ni = 6.3, Co = 1.0 [both wt%]). In addition, the assemblage appears to be characterized by large amounts of breccias within breccias with at least four generations of brecciation observed in one centimeter-size breccia clast. Numerous shock-induced melt veins are present along large breccia clast margins as well as isolated melt pockets within clasts. Interior weathering grade is very low, all glasses are fresh, and no apparent terrestrial alteration veins were noted.
The following superb 9.37g full slice of NWA 2995 is available:
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