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Northwest Africa 14874
Basic information Name: Northwest Africa 14874
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14874
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 670 g
Classification
  history:
Recommended:  Diogenite    [explanation]

This is 1 of 498 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 9 May 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14874 (NWA 14874)

(Northwest Africa)

Purchased: 2022 Jan

Classification: HED achondrite (Diogenite)

History: The meteorite was purchased from a meteorite dealer in Morocco.

Physical characteristics: Light grayish rock without fusion crust.

Petrography: The meteorite displays an unbrecciated grayish interior and is predominantly composed of up to 5 mm sized interlocking orthopyroxene (56 vol%) and calcic plagioclase (42 vol%) grains with minor Ti-bearing chromite and troilite. Few orthopyroxenes contain blebby augite exsolutions.

Geochemistry: low-Ca pyroxene: Fs30.8±0.2Wo3.4±0.4 (Fs30.4-31.2Wo2.6-3.9, FeO/MnO=24-26, n=12); Ca-pyroxene: Fs15.9±0.4Wo39.7±0.4 (Fs15.5-16.6Wo39.1-40.1, FeO/MnO=19-20, n=6); calcic plagioclase: An96.1±0.3 (An96.0-96.5, n=11)

Classification: Diogenite (noritic). Anomalous high plagioclase abundance (42 vol%).

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2022 Jan
Mass (g):670
Pieces:1
Class:Diogenite
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):30.8; 15.9
Wollastonite (mol%):3.4; 39.7
Classifier:A. Greshake, MNB
Type spec mass (g):23.8
Type spec location:MNB
Main mass:Polandmet - Marcin Cimala
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Polandmet: targoniny 30 43445 Dziegielow Poland, Poland; Website (institutional address; updated 7 May 2021)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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