posted 03-04-2018 08:53 PM               

Here are some pictures. Here is some info regarding this specific lunar meteorite:

• Northwest Africa 10644 (NWA 10644) (Northwest Africa)
  
• Purchased: 2016
  
• Classification: Lunar meteorite (feldspathic breccia)
  
• History: Purchased by Dustin Dickens, February 2016, from a Moroccan dealer and sold to Mendy Ouzillou.

• Physical characteristics: Single stone, irregular exterior, no fusion crust. A saw cut reveals light-gray feldspathic clasts (up to 1 cm) and some smaller, fragmental, white plagioclase grains set in a dark-gray groundmass.

• Petrography: (C. Agee, UNM) This is a feldspathic breccia showing several different textural domains: 1) poikilitic plagioclase with olivine and pyroxene inclusions, 2) zones of fragmental plagioclase, olivine, and pyroxene, 3) cataclastic zones of fine-grained (~20 μm) silicates, 4) vesicular shock melt veins and pockets. Pigeonite and augite show significant igneous, iron-enrichment trends.

• Geochemistry: (C. Agee and M. Spilde, UNM) Olivine Fa37.9±1.6, Fe/Mn=98±6, n=13; pigeonite Fs39.3±13.9Wo17.0±4.1, Fe/Mn=66±9, n=11; augite Fs32.0±22.7Wo37.4±1.1, Fe/Mn=60±20, n=2; plagioclase An97.6±0.5, n=5; Shock melt (20 μm defocused electron beam, proxy for bulk meteorite composition): SiO2=44.7±0.1, TiO2=0.5±0.1, Al2O3=29.2±2.5, Cr2O3=0.09±0.05, MgO=4.0±1.4, FeO=5.3±1.7, MnO=0.06±0.02, CaO=16.4±1.0, NiO=0.03±0.02, Na2O=0.48±0.01, K2O=0.10±0.01 (all wt%), n=5.

• Classification: Lunar (feldspathic breccia)

posted 03-12-2018 02:10 PM               

This relatively large lunar meteorite would look fantastic on display with one of the Code 3 models!