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Northwest Africa 13995
Basic information Name: Northwest Africa 13995
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13995
Observed fall: No
Year found: 2021
Country: Algeria
Mass:help 12 kg
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 18 Jun 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13995 (NWA 13995)

Algeria

Purchased: 2021 Feb

Classification: HED achondrite (Eucrite)

History: The holder (Xu Dengqin) purchased the sample from Aziz Zad, who found the meteorite in Algeria. The meteorite was purchased in February 2021

Petrography: The meteorite is a basaltic rock, composed of pigeonite(~30 vol.%, size from 20 to 2000 µm), augite(~15 vol.%, size from 20 to 2000 µm), and plagioclase (~50 vol.%, size from 20 to 2500 µm). with minor amounts of silica and troilite. It has ophitic to subophitic texture.

Geochemistry: Low-Ca pyroxene: Fs61.2±0.3Wo1.8±0.1, Fe/Mn=36.0±0.6, n=6; high-Ca pyroxene: Fs46.2±4.4Wo21.9±5.1, Fe/Mn=33.9±0.9, n=4; (EPMA).

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2021 Feb
Mass (g):12000
Pieces:many
Class:Eucrite
Ferrosilite (mol%):61.2±0.3;46.2±4.4
Wollastonite (mol%):1.8±0.1;21.9±5.1
Classifier:Gao Tianjing
Type spec mass (g):35
Type spec location:IGCAS
Main mass:Xu Dengqin
Comments:Submitted by Li shijie
Institutions
   and collections
IGCAS: Institute of Geochemistry Chinese Academy of Sciences, Guiyang, China (institutional address; updated 27 Mar 2018)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
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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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