Lunar Meteorite: Northwest Africa 14063 & 14064
assumed paired stones; NWA 8046-clan pairs?
from The Meteoritical Bulletin, No. 110 Northwest Africa 14063 (NWA 14063)northwestern Africa Classification: Lunar meteorite (feldspathic breccia) History: The meteorite was purchased from a meteorite dealer in Morocco. Physical characteristics: Many small grayish fragments without fusion crust. Petrography: (A. Greshake, MNB) The meteorite is a polymict breccia composed of up to 8 mm sized angular to sub-rounded lithic (gabbroic and basaltic) and mineral clasts set in fine-grained partly shock molten matrix that often shows flow textures. Minerals are predominantly calcic plagioclase, olivine, Ca-pyroxene, and low-Ca pyroxene. Minor phases include FeS, ilmenite, Ti-bearing chromite, and zircon. Geochemistry: olivine: Fa34.9±2.9 (Fa31.6-38.4, FeO/MnO=104±13, n=21); low-Ca pyroxene: Fs29.5±2.7Wo3.8±1.0 (Fs26.2-34.2Wo2.4-5.9, FeO/MnO=59±6, n=18); Ca-pyroxene: Fs14.7±2.8Wo40.9±4.3 (Fs11.3-18.9Wo35.4-46.6, FeO/MnO=44±6, n=14); calcic plagioclase: An96.2±0.4 (An95.6-96.6, n=14) Classification: Lunar meteorite (feldspathic breccia) Specimens: 16.5 g at MNB. Main mass with David Göttlich. |
from The Meteoritical Bulletin, No. 110 Northwest Africa 14064 (NWA 14064)northwestern Africa Classification: Lunar meteorite (feldspathic breccia) History: The meteorite was purchased from a meteorite dealer in Morocco. Physical characteristics: Several small sand-colored fragments without fusion crust. Petrography: (A. Greshake, MNB) Fragmental breccia composed of up to 1 cm feldspathic clasts in fine-grained partly shock molten matrix with flow textures. Minerals are predominantly plagioclase and olivine indicating the presence of abundant troctolitic material; augite and pigeonite are rare. Some olivines contain augite-chromite symplectites. Accessory phases are: FeS, ilmenite, Ti-bearing chromite, and silica as well as secondary barite, strontianite, and calcite. Geochemistry: olivine: Fa27.8±10.8 (Fa15.0-42.2, FeO/MnO=87±9, n=28); pigeonite: Fs27.7±3.6Wo11.1±1.4 (Fs23.8-32.6Wo8.3-13.5, FeO/MnO=55±6, n=17); Ca-pyroxene: Fs14.7±1.2Wo38.0±2.9 (Fs13.0-18.3Wo30.1-42.5, FeO/MnO=45±7, n=12); calcic plagioclase: An96.1±0.6 (An95.4-97.4, n=13) Classification: Lunar meteorite (feldspathic breccia) Specimens: 5.6 g at MNB. Main mass with David Göttlich. |
| Randy Says… I have not studied these two meteorites. The descriptions are sufficiently similar that I assume they are paired with each other. They may also be other stones of the NWA 8046 clan. |