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Northwest Africa 14908
Basic information Name: Northwest Africa 14908
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14908
Observed fall: No
Year found: 2017
Country: Algeria
Mass:help 960 g
Classification
  history:
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 323 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 9 May 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14908 (NWA 14908)

Algeria

Find: 2017 Mar

Classification: Lunar meteorite (feldspathic breccia)

History: The meteorite was found by nomads in Algeria in March 2017. Zs. Kereszty purchased the stone from a Moroccan dealer in 2019.

Physical characteristics: (D. Rezes and Zs. Kereszty, CSFK) A weakly weathered, hand sized, flat stone (960 g) without fusion crust. The largest dimension of the stone is 164 mm. Light grey and white clasts (up to 2 cm in size) are presented on the surface of the stone. Cut surface reveals coherent black matrix material, different coloured clasts and scarce metal and troilite grains.

Petrography: (D. Rezes, CSFK) Thin section of the meteorite shows mainly impact-related (impact melt, impact melt breccia and granulite) feldspathic clasts embedded in shock melt. Melt flow textures are observable in the sample. Major mineral phases are olivine, pyroxene and plagioclase. Accessory mineral phases are FeNi, troilite and chromite.

Geochemistry: (D. Rezes, CSFK) Olivine Fa23.23±7.14, Fe/Mn=85.1±20.7, N=20; augite Fs29.34±24.16Wo34.85±6.95, Fe/Mn=58.0±28.8, N=5; plagioclase An97.40±2.34, N=3; shock melt (20 µm defocused electron beam, proxy for bulk meteorite composition) SiO2=46.80±0.31, TiO2=0.17±0.05, Al2O3=29.15±1.09, Cr2O3=0.12±0.03, FeO=3.68±0.28, MnO=0.06±0.03, MgO=7.18±0.74, CaO=11.87±0.28, Na2O=0.96±0.21, K2O=0.03±0.06, N=4 (all in wt%).

Classification: Lunar feldspathic breccia. The meteorite is likely paired with NWA 8046 and related stones.

Specimens: 21 g on deposit at CSFK, ZKereszty holds the main mass.

Data from:
  MB111
  Table 0
  Line 0:
Date:2017 Mar
Mass (g):960
Pieces:1
Class:Lunar (feldsp. breccia)
Shock stage:high
Weathering grade:low
Fayalite (mol%):23.23±7.14 (14.93-38.96, N=20)
Ferrosilite (mol%):29.34±24.16 (7.64-62.58, N=5)
Wollastonite (mol%):34.85±6.95 (24.80-41.99, N=5)
Classifier:D. Rezes, CSFK
Type spec mass (g):21
Type spec location:CSFK
Main mass:ZKereszty
Comments:Work name: ZK-23; submitted by Daniel Rezes
Institutions
   and collections		 ZKereszty: Gyor, Lahner 1. 9024 , Hungary (private address; updated 8 Sep 2014)
CSFK: Research Center for Astronomy and Earth Sciences, H-1121 Budapest, Konkoly Thege Miklós út 15-17.l Hungary, Hungary (institutional address; updated 7 Apr 2015)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Public domain photographs:
Daniel Rezes         
Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1306 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)

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