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Northwest Africa 3188
Basic information Name: Northwest Africa 3188
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 3188
Observed fall: No
Year found: 2006
Country: (Northwest Africa)
Mass:help 1620 g
Classification
  history:
Meteoritical Bulletin:  MB 108  (2020)  H6
Recommended:  H6    [explanation]

This is 1 of 6213 approved meteorites (plus 5 unapproved names) classified as H6.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 7 Sep 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 3188 (NWA 3188)

(Northwest Africa)

Purchased: 2006

Classification: Ordinary chondrite (H6)

History: Purchased by Carsten Giessler in 2006 from a Moroccan dealer.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Largely recrystallized with triple grain junction to poikiloblastic texture. Holly-leaf shaped opaque phases are relatively abundant and rare remnant chondrules are present.

Geochemistry: Olivine (Fa18.9±0.1 (range Fa18.8-18.9, N = 3), low-Ca pyroxene (Fs17.0±0.2Wo1.3±0.2 (range Fs16.7-17.2Wo1.5-1.1, N = 4).

Classification: Ordinary chondrite (H6). Although this specimen has the attributes of a Type 6 chondrite, it is texturally transitional to Type 7.

Specimens: 35 g including one polished thin section at PSF; remainder with Mr. C. Giessler.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2006
Mass (g):1620
Pieces:1
Class:H6
Shock stage:S2
Weathering grade:W0/1
Fayalite (mol%):18.9±0.1
Ferrosilite (mol%):17.0±0.2
Wollastonite (mol%):1.3±0.2
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):35
Type spec location:PSF
Main mass:C. Giessler
Comments:Submitted by A. Irving
Institutions
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
BrownU: Brown University Providence, RI 02912, United States (institutional address; updated 7 Sep 2019)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Don Edwards   
Geography: 
Coordinates:Unknown.

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

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