N. 85094295

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NWA 16179 - meteorite HED acondrite (Eucrite) - 93.56 g
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NWA 16179 - meteorite HED acondrite (Eucrite) - 93.56 g

Northwest Africa 16179 Basic information Name: Northwest Africa 16179 This is an OFFICIAL meteorite name. Abbreviation: NWA 16179 Observed fall: No Year found: 2023 Country: (Northwest Africa) Mass:help 3.2 kg Classification history: Meteoritical Bulletin: MB 112 (2023) Eucrite Recommended: Eucrite [explanation] This is 1 of 605 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites Comments: Approved 30 Sep 2023 Writeuphelp Writeup from MB 112: Northwest Africa 16179 (NWA 16179) (Northwest Africa) Purchased: 2023 Classification: HED achondrite (Eucrite) History: Many samples weighing a total of 3.2 kg were found in northwest Africa. Salek Mrabih purchased the sample from a meteorite dealer in June 2023. Physical characteristics: Stones have a rounded shape and lack fusion crust. The cut face is light gray in color and shows a brecciated texture. Petrography: Description and classification (A. Love, App) Sample shows brecciated texture dominated by anhedral exsolved pyroxene and plagioclase fragments. Average grainsize of plagioclase felspar is 65.6µm, n=20. Additional minerals are: a silica polymorph, apatite, Cr-bearing ilmenite, chromite and troilite. Geochemistry: (A. Love, App) low Ca-pyroxene (Fs65.3±1.1Wo2.8±1.2, Fe/Mn=31.1±0.5 n=12); high Ca-pyroxene (Fs31.0±1.5Wo41.0±1.5, Fe/Mn=31.3±1.2 n=12); plagioclase (An92.1_1.1Or0.2±0.1, n=12). Classification: HED achondrite (eucrite breccia M-S2 low weathering) Based on textures and mineral compositions, sample is a equilibrated basaltic eucrite breccia with M-S2 and low weathering. Specimens: Salek Mrabih (Dominion meteorites) holds the main masses. A polished thin section and 7 small individuals weighing 20.2 g are on Deposit at App. Data from: MB112 Table 0 Line 0: Place of purchase: Morocco Date: P 2023 Mass (g): 3200 Pieces: many Class: Eucrite Shock stage: M-S2 Weathering grade: low Ferrosilite (mol%): 65.3±1.1; 31.0±1.5 Wollastonite (mol%): 2.8.4±1.2; 41.0±1.5 Classifier: A. Love, App Type spec mass (g): 20.2 Type spec location: App Main mass: Salek Mrabih Comments: Submitted by Anthony Love

N. 85094295

Non più disponibile
NWA 16179 - meteorite HED acondrite (Eucrite) - 93.56 g

NWA 16179 - meteorite HED acondrite (Eucrite) - 93.56 g

Northwest Africa 16179
Basic information Name: Northwest Africa 16179
This is an OFFICIAL meteorite name.
Abbreviation: NWA 16179
Observed fall: No
Year found: 2023
Country: (Northwest Africa)
Mass:help 3.2 kg
Classification
history:
Meteoritical Bulletin: MB 112 (2023) Eucrite
Recommended: Eucrite [explanation]

This is 1 of 605 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 30 Sep 2023
Writeuphelp
Writeup from MB 112:
Northwest Africa 16179 (NWA 16179)
(Northwest Africa)
Purchased: 2023
Classification: HED achondrite (Eucrite)
History: Many samples weighing a total of 3.2 kg were found in northwest Africa. Salek Mrabih purchased the sample from a meteorite dealer in June 2023.
Physical characteristics: Stones have a rounded shape and lack fusion crust. The cut face is light gray in color and shows a brecciated texture.
Petrography: Description and classification (A. Love, App) Sample shows brecciated texture dominated by anhedral exsolved pyroxene and plagioclase fragments. Average grainsize of plagioclase felspar is 65.6µm, n=20. Additional minerals are: a silica polymorph, apatite, Cr-bearing ilmenite, chromite and troilite.
Geochemistry: (A. Love, App) low Ca-pyroxene (Fs65.3±1.1Wo2.8±1.2, Fe/Mn=31.1±0.5 n=12); high Ca-pyroxene (Fs31.0±1.5Wo41.0±1.5, Fe/Mn=31.3±1.2 n=12); plagioclase (An92.1_1.1Or0.2±0.1, n=12).
Classification: HED achondrite (eucrite breccia M-S2 low weathering) Based on textures and mineral compositions, sample is a equilibrated basaltic eucrite breccia with M-S2 and low weathering.
Specimens: Salek Mrabih (Dominion meteorites) holds the main masses. A polished thin section and 7 small individuals weighing 20.2 g are on Deposit at App.
Data from:
MB112
Table 0
Line 0:
Place of purchase: Morocco
Date: P 2023
Mass (g): 3200
Pieces: many
Class: Eucrite
Shock stage: M-S2
Weathering grade: low
Ferrosilite (mol%): 65.3±1.1; 31.0±1.5
Wollastonite (mol%): 2.8.4±1.2; 41.0±1.5
Classifier: A. Love, App
Type spec mass (g): 20.2
Type spec location: App
Main mass: Salek Mrabih
Comments: Submitted by Anthony Love

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