This lunar-origin meteorite (NWA 11788) was first recovered out of the Saharan Desert of Mali in 2017. The find consisted of many small, wind-polished pieces that show a dark grey matrix with contrasting creamy-white clasts. It was analyzed and classified at the University of New Mexico by Dr. Carl Agee as a lunar feldspathic breccia.
The specimen being offered here is an uncut fragment that is presented "as found". It consists of a solid fragment that shows some shock veining on the surface. It weighs approx. .933g (or 933mg).
Refer to the photos. The black centimeter cube is shown for scale and is not included. You are purchasing the specimen shown. Your purchase will include a labeled gemjar for safe storage.
From the Meteoritical Bulletin entry on NWA 11788 :
Northwest Africa 11788 (NWA 11788)
Classification: Lunar meteorite (feldspathic breccia)
History: Purchased in Mali from anonymous meteorite hunter.
Physical characteristics: Many dark visually identical appearing pieces, with masses ranging from ~2 kg to many sub-g fragments, showing no fusion crust. Saw cut reveals a finely fragmental breccia with white feldspathic clasts set in a dark gray ground mass with metal flecks and minor vesiculation appearing throughout.
Petrography: (C. Agee, UNM) This meteorite is a breccia of fragmental pyroxene, olivine, plagioclase grains. There are domains that are fine-grained and cataclastic with shock melt and vesicles.
Geochemistry: (C. Agee, UNM) olivine Fa: 31.2±9.4, Fe/Mn=95±7, n=12; clinopyroxene Fs36.0±10.0Wo22.2±8.8, Fe/Mn=60±5, n=12; plagioclase An93.0±1.8, n=7; Shock melt (20 _m defocused electron beam, proxy for bulk meteorite composition): SiO2=43.2±1.7, TiO2=0.46±0.20, Al2O3=24.2±3.6, Cr2O3=0.23±0.08, MgO=7.8±1.4, FeO=8.0±3.2, MnO=0.10±0.05, CaO=14.2±1.4, Na2O=0.35±0.23, K2O=0.08±0.05 (all wt%), n=4.
Classification: Lunar feldspathic breccia