13.58g Lodranite Rare Primitive Achondrite Meteorite fragment I NWA 11901
| Northwest Africa 11901 | |||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 11901 This is an OFFICIAL meteorite name. Abbreviation: NWA 11901 Observed fall: No Year found: 2017 Country: Western Sahara Mass: 662 g |
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| Classification history: |
This is 1 of 81 approved meteorites classified as Lodranite. |
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| Comments: | Approved 31 Aug 2018 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 107:
Northwest Africa 11901 (NWA 11901) Western Sahara Purchased: 2017 Classification: Primitive achondrite (Lodranite) History: Purchased by Dustin Dickens from nomad near Dahkla in Western Sahara. Physical characteristics: Many identically appearing pieces. Weathered exterior. A saw cut reveals an interior of coarse green and brown crystals. Opaque grains are scattered throughout. Petrography: (C. Agee, UNM) This meteorite consists primarily of olivine and Cr-diopside; low-Ca pyroxene and plagioclase are absent. Most grains are in the 1-3 mm size range. Geochemistry: (C. Agee, UNM) Olivine Fa11.0±0.1, Fe/Mn=38±5, Cr2O3=0.03±0.01 (wt%), n=4; diopside Fs5.0±0.6Wo41.4±2.9, Fe/Mn=14±1, Cr2O3=1.09±0.06 (wt%)n=7. Classification: Lodranite, opx-absent Specimens: 22.9 g including a probe mount on deposit at UNM, Dustin Dickens holds the main mass. |
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| Data from: MB107 Table 0 Line 0: |
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