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Northwest Africa 14197
Basic information Name: Northwest Africa 14197
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14197
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass:help 358 g
Classification
  history:
Recommended:  H3-6    [explanation]

This is 1 of 75 approved meteorites classified as H3-6.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 18 Sep 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14197 (NWA 14197)

(Northwest Africa)

Purchased: 2008 Dec

Classification: Ordinary chondrite (H3-6)

History: Purchased from a Moroccan mineral dealer at the mineral show in Hamburg, Germany

Physical characteristics: Single stone without fusion crust

Petrography: (K. Metzler, IfP) Shock-darkened ordinary chondrite with high amounts of Fe-Ni metal. Genomict breccia, consisting of subrounded clasts of petrologic type 6 (up to 2 cm), embedded in a coarse-grained clastic matrix containing clasts of various petrologic types (3-6). Large metal grains (up to 1.5 cm) occur.

Geochemistry: Mineral compositions and geochemistry: Mean compositions of olivine and low-Ca pyroxene in the various clast types: Petrologic type 3: Fa18.2±6.0 (Fa4.2-33.2; n=13); Fs12.8±3.9Wo0.7±0.4 (Fs2.6-15.9Wo0.2-1.6; n=13). Petrologic type 6: Fa18.4±0.3 (Fa17.9-18.8; n=12); Fs16.5±0.5Wo1.2±0.2 (Fs15.6-17.5Wo0.9-1.5; n=12).

Classification: H chondrite, based on the high metal content and mineral chemistry. Petrologic types of clasts based on their chemical variations of olivine and low-Ca pyroxene. Sizes of seconday plagioclase grains in type 6 clasts mostly >50 µm.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Hamburg, Germany
Date:P 2008 Dec
Mass (g):358
Pieces:1
Class:H3-6
Shock stage:C-S4
Weathering grade:W1
Fayalite (mol%):18.2±6.0; 18.4±0.3
Ferrosilite (mol%):12.8±3.9; 16.5±0.5
Wollastonite (mol%):0.7±0.4; 1.2±0.2
Classifier:K. Metzler, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:Anonymous
Comments:Submitted by K. Metzler, IfP
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7912 approved meteorites from (Northwest Africa) (plus 1974 unapproved names)

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