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Northwest Africa 14089
Basic information Name: Northwest Africa 14089
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14089
Observed fall: No
Year found: 2020
Country: Algeria
Mass:help 683 g
Classification
  history:
Recommended:  Eucrite    [explanation]

This is 1 of 513 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 6 Jul 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14089 (NWA 14089)

Algeria

Find: 2020

Classification: HED achondrite (Eucrite)

History: Acquired by Daniel Sheikh from Aziz Zad in June 2021.

Physical characteristics: Single stone with dark brown fusion crust.

Petrography: (D. Sheikh, Cascadia) Specimen is composed of angular to sub-rounded clasts and elongate grains made up primarily of plagioclase and pyroxene (up to ~1.5 mm) and set within a finer-grained matrix containing accessory SiO2-rich glass and ilmenite.

Geochemistry: Low-Ca Pyroxene (Fs52.5±1.3 Wo3.4±1.3, range Fs50.2-55.8Wo1.7-5.5, Fe/Mn=31±3, n=18), Pigeonite (Fs44.7±4.4Wo16.0±5.9, range Fs37.9-51.7 Wo7.0-23.4, Fe/Mn=31±5, n=18), Augite (Fs29.1±4.3 Wo34.8±5.4, range Fs21.1-37.7Wo25.1-43.8, Fe/Mn=29±4, n=25), Calcic Plagioclase (An84.9±2.6, range An80.0-89.8, n=42).

Classification: Achondrite (Eucrite).

Specimens: 43 grams at Cascadia, main mass with D. Sheikh.

Data from:
  MB110
  Table 0
  Line 0:
Date:2020
Mass (g):683
Pieces:1
Class:Eucrite
Shock stage:moderate
Weathering grade:low
Ferrosilite (mol%):52.5±1.3, 44.7±4.4, 29.1±4.3
Wollastonite (mol%):3.4±1.3, 16.0±5.9, 34.8±5.4
Classifier:D. Sheikh, Cascadia
Type spec mass (g):43
Type spec location:Cascadia
Main mass:D. Sheikh
Comments:Submitted by Daniel Sheikh
Institutions
   and collections
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1133 approved meteorites from Algeria (plus 27 unapproved names) (plus 4 impact craters)

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