Lunar Meteorite: Errachidia

Photomicrograph of a thin section of Errachidia. Image credit: Ann-Kathrin Kraemer and Addi Bischoff

from The Meteoritical Bulletin, No. 107


Find: 2016 April
Mass: 156 g (1 piece)

Lunar meteorite (feldspathic breccia)

History: One piece of 156 g was found April 2016 near Aoufous in Morocco.

Petrography: (A.-K. Kraemer and A. Bischoff,  IfP) Breccia composed of angular anorthite-rich lithic and mineral fragments embedded in a fine-grained clastic matrix. The sample also contains melt spherules and some glassy areas. Observed minerals include anorthite, olivine, low-Ca pyroxene, Ca-rich pyroxene, Al-Ti-chromite, kamacite,  taenit, ilmenite and troilite.

Geochemistry: Mineral composition and geochemistry: Olivine (mean: Fa32.6, Fe/Mn = 96; N = 43), low-Ca pyroxene (mean Fs29.5Wo7.9, Fe/Mn = 59, N = 40), Ca-rich pyroxene (mean: Fs15.8Wo41.4; Fe/Mn = 49; N = 11), anorthite (mean An95.9Or0.1, N = 56).

Specimens: type specimen, 23.5 g; main mass with finder.

Randy Says…

I have not studied this one.

More Information

Meteoritical Bulletin Database