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Northwest Africa 16182
Basic information Name: Northwest Africa 16182
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 16182
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 250 g
Classification
  history:
Meteoritical Bulletin:  MB 112  (2024)  H5
Recommended:  H5    [explanation]

This is 1 of 11988 approved meteorites (plus 23 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 3 Sep 2023
Writeuphelp
Writeup from MB 112:

Northwest Africa 16182 (NWA 16182)

(Northwest Africa)

Purchased: 2022

Classification: Ordinary chondrite (H5)

History: Acquired online by Jules Michels from Topher Spinnato in 2022.

Physical characteristics: Single stone with a moderately weathered dark brown fusion crust.

Petrography: (D. Sheikh, Cascadia) Sample is an equilibrated ordinary chondrite containing secondary recrystallized feldspar (Av. ~12 μm), and accessory Fe-Ni metal, troilite, and chromite.

Geochemistry: Olivine (Fa19.4±0.4, range Fa18.7-21.0, n=68), Low-Ca Pyroxene (Fs17.1±0.3Wo1.1±0.2, range Fs16.6-18.1Wo0.9-1.8, n=36).

Classification: Ordinary Chondrite (H5).

Specimens: 21.9 grams at Cascadia, main mass with Jules Michels.

Data from:
  MB112
  Table 0
  Line 0:
Place of purchase:online
Date:P 2022
Mass (g):249.6
Pieces:1
Class:H5
Shock stage:S3
Weathering grade:W3
Fayalite (mol%):19.4±0.4
Ferrosilite (mol%):17.1±0.3
Wollastonite (mol%):1.1±0.2
Classifier:D. Sheikh, Cascadia
Type spec mass (g):21.9
Type spec location:Cascadia
Main mass:Jules Michels
Comments:CML 1543; 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 Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Cartier C., Consolmagno G., Goodrich C., Greshake A., Gross J., Joy K. H., Miao B. and Zhang B. (2024) The Meteoritical Bulletin, no. 112. Meteoritics & Planetary Science 59, 1820–1823. ?
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9829 approved meteorites from (Northwest Africa) (plus 1851 unapproved names)

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