10.58 grams. 23 x 15 x 14 mm. Eucrite-mmict
TKW 924 grams. Fall not observed. Found August 2015.
From the MetBul:
Northwest Africa 10909 (NWA 10909)
Morocco, Western Sahara, 112 km south of Tindouf
Find: 2015 Aug
Classification: HED achondrite (Eucrite, monomict)
History: Six complete stones covered with dark fusion crust were found in the desert by a nomad. The stones (originally 201.3, 110.9, 121.7, 127.1, 100.3, and 152 g) were sent to MCM for study. After the first studies, several grams were sent to UPC, where analysis was performed by Dr. J. Llorca in October 2015.
Petrography: The meteorite displays a basaltic texture with up to 1.5 mm sized exsolved pyroxenes and equally sized lath-shaped calcic plagioclase. Minor phases include chromite, SiO2 polymorphs, ilmenite and metallic iron.
Geochemistry: (J.Llorca, UPC) Orthopyroxene; Fs57.4±0.9, Wo2.2±1.4, FeO/MnO = 32±1, n=19. Plagioclase; An87.1±2.6, n=21.
Specimens: The remaining masses are in the private collection of Javier Franco, Las Palmas de Gran Canaria, Spain, and 90.9 g at MCM. Repository sample: 20 g UPC.
Click to view larger photos #1 #2 #3
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