Description
0.162g part slice. Sold in collection box with label / certificate of authenticity.
*** If you buy from the € zone, please use € currency on my website and for payment. This way, you’ll avoid paying Paypal conversion fees ! ***
Northwest Africa 13714 (NWA 13714)
(Northwest Africa)
Purchased: October 2020
Classification: Lunar meteorite (feldspathic breccia)
Physical characteristics: A single flat grey brecciated stone. Cut surface reveals a dark grey interior with clasts.
Petrography: (J. Gattacceca, CEREGE) Breccia with mineral and melt rock clasts (to mm) set in a matrix that can be glassy (with vesicles) to clastic. Main minerals are Ca-pyroxene and olivine. Other minerals: metal, troilite (10-20 µm), ilmenite.
Geochemistry: Olivine Fa41.9±6.8, range Fa33.2-50.2, FeO/MnO = 92.8±7.8, CaO = 0.38±0.08 (n=5). Ca-pyroxene Fs34.2±4.2Wo19.8±3.4 (n=7), Fs19.0Wo42.0 (n=2), FeO/MnO = 52.9±4.0 (n=9). Feldspathic mesostasis An97.0±0.8Ab2.8±0.7Or0.2±0.1 (n=7).
Classification: Achondrite (lunar feldspathic breccia)
Specimens: Type specimen at CEREGE. Main mass with Kuntz.
