Northwest Africa 8326
Purchased: Dec 2013 Classification: HED achondrite (Diogenite)
Physical characteristics: The eight individuals are partly to totally covered by black fusion crust and show a light greyish interior.
Petrography: The meteorite displays a pronounced cumulate texture of predominantly large orthopyroxene and plagioclase crystals. Orthopyroxene is heavily fractured and plagioclase partly converted to maskelynite due to shock. Accessory minerals include augite, SiO2 polymorphs, chromite and troilite.
Geochemistry: low-Ca pyroxene: Fs35.5±0.4Wo2.5±0.5 (Fs34.4-36.1Wo1.7-4.2, n=17), FeO/MnO: 26-32; Ca-pyroxene: Fs14.9±0.2Wo43.8±0.2 (Fs14.6-15.1Wo43.5-44, n=10), FeO/MnO: 22-26; clacic plagioclase: An84.4±1 (An83.2-86.3, n=12)
Name : NWA 8326 Class : Achondrite Diogenite Region: Mauritania Date : 12.2013 TKW : 205g