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information	Name: Northwest Africa 17089
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 17089
Observed fall: No
Year found: 2023
Country: Mauritania
Mass:help 13 kg
Classification
  history:	
Recommended:  			Eucrite    [explanation]

This is 1 of 655 approved meteorites ) (plus 1 unapproved name) classified as Eucrite.    [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments:	Approved 2 Nov 2024
Writeuphelp	
Writeup from MB 113:
Northwest Africa 17089 (NWA 17089)
Mauritania
Purchased: 2023
Classification: HED achondrite (Eucrite)
History: Salek Mrabih (Dominions Meteors) and Arbi Ababuzaid purchased many samples from a merchant in Mauritania in 2023.
Physical characteristics: The exterior of the sample is crystalline and partially coated with an orange layer of caliche. The cut face shows the interior has a brecciated texture.
Petrography: Description and classification (A. Love, App) Sample is a breccia composed of coarse grained cumulate basaltic clasts and some basaltic lithic debris set within a quenched subophitic melt matrix. Plagioclase shows twinning but has been partially converted to glass. Cumulate pyroxene has been transformed into a mosaic of finer polycrystalline aggregates. Lithic pyroxenes show weak zonation. Additional minerals are: secondary calcite, minor troilite, chromite and ilmenite.
Geochemistry: (A. Love, App) pigeonite (Fs43.9±5.4Wo10.0±3.5, Mg#=51.0±7.6 (35.5-65.6), Fe/Mn=29.9±1.8 n=17); plagioclase (An91.2±3.1Or0.3±0.2, n=6).
Classification: HED achondrite (eucrite melt breccia M-S4 W2) Based on brecciated and quenched textures within matrix and mineral chemistry, sample is cumulate eucrite melt breccia.
Specimens: Salek Mrabih (Dominions Meteors) and Arbi Ababuzaid hold the main masses. A polished thin section and a sliced chunk and several fragments weighing 45.59 g are on deposit at App.
Data from:
  MB113
  Table 0
  Line 0:	
Date:	P 2023
Mass (g):	13000
Pieces:	many
Class:	Eucrite
Shock stage:	M-S4
Weathering grade:	W2
Ferrosilite (mol%):	43.9±5.4
Wollastonite (mol%):	10.0±3.5
Classifier:	A. Love, App
Type spec mass (g):	45.59
Type spec location:	App
Main mass:	Salek Mrabih (Dominions meteors)
Comments:	Submitted by Anthony Love


Mauritania, Mauritania

NWA-17089 EUCRITE MELT BRECCIA - 18.2 g - (1)

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Period

Paleogene, Eocene (56 - 33.9 million years)

2020+

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2024

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2023

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Fineness

18 kt.

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NWA-17089 EUCRITE MELT BRECCIA - 18.2 g - (1)

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