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Northwest Africa 14443
Basic information Name: Northwest Africa 14443
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14443
Observed fall: No
Year found: 2019
Country: Morocco
Mass:help 318 g
Classification
  history:
Recommended:  Eucrite-unbr    [explanation]

This is 1 of 119 approved meteorites classified as Eucrite-unbr.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 11 Nov 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14443 (NWA 14443)

Morocco

Purchased: 2019 Aug

Classification: HED achondrite (Eucrite, unbrecciated)

History: Purchased by Sean Tutorow from a dealer in August 2019 in Morocco.

Physical characteristics: The type specimen has a rugged surface and lacks fusion crust. The interior has a dominant light gray to light brown shade, and present some veins filled with weathering products.

Petrography: (A. Bouvier, UBayr) The stone has a fine-grained, ophitic, and unbrecciated texture. It is composed predominantly of exsolved pigeonite (100-200 μm in size low-Ca pyroxene and up to 5 μm high-Ca pyroxene exsolution lamellae) and calcic plagioclase (~100-200 μm in size), and remaining as minor minerals such as silica polymorph, chromite, troilite, and rarer metal (partially oxidised). Irregular fracturing and offset of exsolution lamellae in pyroxenes indicate together some minor mechanical deformation by shock.

Geochemistry: Low-Ca pyroxene pigeonite Fs59.3±1.4Wo2.7±0.2, Fe/Mn=31±2 (n=33) and high-Ca pyroxene lamellae Fs25.8±0.5Wo43.4±0.5 and Fe/Mn=30±3 (n=11), Plagioclase An88.3±1.1Or0.2±0.1 (n=18).

Classification: Basaltic, unbrecciated eucrite

Specimens: 28.9 g including a thin section and polished mount at UBayr. S. Tutorow holds the main mass.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2019 Aug
Mass (g):318.2
Pieces:1
Class:Eucrite-unbr
Shock stage:low
Weathering grade:medium
Ferrosilite (mol%):59.3±1.4 (n=33)
Wollastonite (mol%):2.7±0.2 (n=33)
Classifier:A. Bouvier, UBayr
Type spec mass (g):28.9
Type spec location:UBayr
Main mass:S. Tutorow
Comments:G675; submitted by A. Bouvier
Institutions
   and collections
UBayr: Bayerisches Geoinstitut, University of Bayreuth, D-95440 Bayreuth, Germany (institutional address; updated 5 Feb 2020)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1871 approved meteorites from Morocco (plus 24 unapproved names) (plus 1 impact crater)

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