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Northwest Africa 15376
Basic information Name: Northwest Africa 15376
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15376
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 14 kg
Classification
  history:
Recommended:  LL3-6    [explanation]

This is 1 of 34 approved meteorites classified as LL3-6.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 12 Nov 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15376 (NWA 15376)

(Northwest Africa)

Purchased: 2021

Classification: Ordinary chondrite (LL3-6)

History: Purchased by Mark Lyon from a meteorite dealer in Algeria in 2021.

Physical characteristics: Single stone with minor fusion crust.

Petrography: (D. Sheikh, Cascadia) Sample is a genomict breccia comprised of mm to cm-sized sub-angular clasts, and few chondrules, set within a fine-grained matrix containing melt-rich regions. Some clast lithologies are equilibrated and contain secondary recrystallized feldspar (Av. ~60 μm), other clast lithologies are unequilibrated and contain devitrified glass. Accessory phases include Fe-Ni metal, troilite, and chromite.

Geochemistry: Equilibrated lithologies [Olivine (Fa30.0±0.7, range Fa29.3-31.5, n=17), Low-Ca Pyroxene (Fs24.3±0.7Wo2.0±0.6, range Fs22.5-25.7Wo1.5-3.9, n=15)]; Unequilibrated lithologies [Olivine (Fa28.6±1.6, range Fa27.1-30.9, n=7), Low-Ca Pyroxene (Fs21.6±2.5Wo1.8±1.0, range Fs17.8-25.2Wo0.6-3.7, n=10)].

Classification: Ordinary Chondrite (LL3-6).

Specimens: 33.9 g at Cascadia, main mass with Mark Lyon.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2021
Mass (g):14000
Pieces:1
Class:LL3-6
Shock stage:S3
Weathering grade:W2
Fayalite (mol%):30.0±0.7, 28.6±1.6
Ferrosilite (mol%):24.3±0.7, 21.6±2.5
Wollastonite (mol%):2.0±0.6, 1.8±1.0
Classifier:D. Sheikh, Cascadia
Type spec mass (g):33.9
Type spec location:Cascadia
Main mass:Mark Lyon
Comments:CML 1606; 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. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8777 approved meteorites from (Northwest Africa) (plus 1879 unapproved names)

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