NWA 13866 L6 Chondrite Meteorite 6.4 gram part slice

Description

NORTHWEST AFRICA 13866
L6 CHONDRITE METEORITE
6.4 GRAM PART SLICE
THIS METEORITE HAS BEEN IDENTIFIED TO BE OF GREAT INTEREST BECAUSE IT HAS MANY TINY VUGS, SOME WITH CRYSTALS GROWING INSIDE
VISIBLE CHONDRULES
MANY REFLECTIVE RECRYSTALLIZED CHONDRULE FRAGMENTS
SOME TINY SPECKS OF METAL
Northwest Africa 13866
Basic information
Name:
Northwest Africa 13866
This is an OFFICIAL meteorite name.
Abbreviation:
NWA 13866
Observed fall:
No
Year found:
2020
Country:
Morocco
Mass:
6.06 kg
Classification
history:
Recommended:
L6
This is 1 of 12068 approved meteorites (plus 6 unapproved names) classified as L6.
Comments:
Approved 28 Mar 2021
Writeup
Writeup from MB 110:
Northwest Africa 13866
(NWA 13866)
Morocco
Purchased: 2020 Feb
Classification: Ordinary chondrite (L6)
History
: Found by Ahmed Bouchama near Dakhla, Morocco, in January 2020 and purchased by John Higgins in February 2020.
Petrography
: (A. Irving,
UWS
and P. Carpenter,
WUSL
) Largely recrystallized with rare chondrule remnants. Accessory phases are sodic plagioclase, troilite, low-Ti chromite, kamacite, taenite and merrillite.
Geochemistry
: Olivine (Fa
25.0±0.3
, range Fa
24.6-25.4
, N = 6), low-Ca pyroxene (Fs
20.7±0.2
Wo
1.7±0.1
, range Fs
20.5-20.9
Wo
1.6-1.8
, N = 4), augite (Fs
8.4±0.4
Wo
44.2±0.2
, range Fs
8.1-8.8
Wo
43.9-44.3
, N = 3).
Classification
: Ordinary chondrite (L6).
Specimens
: 30 g including one polished thin section at
UWB
; remainder with Mr. J. Higgins.
Data from:
MB110
Table 0
Line 0:
Place of purchase:
Morocco
Date:
P 2020 Feb
Mass (g):
6064
Pieces:
1
Class:
L6
Shock stage:
S2
Weathering grade:
W2
Fayalite (mol%):
25.0±0.3
Ferrosilite (mol%):
20.7±0.2
Wollastonite (mol%):
1.7±0.1
Classifier:
A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):
30
Type spec location:
UWB
Main mass:
J. Higgins
Finder:
A. Bouchama
Comments:
Work name JH20-7; submitted by A. Irving
Institutions
and collections
UWS
: University of Washington, Department of Earth and Space Science
WUSL
: Washington Univ
UWB
: University of Washington
Catalogs:
References:
Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Geography:
Coordinates:
Unknown.
Statistics:
This is 1 of 1847 approved meteorites from
Morocco
(plus 24 unapproved names) (plus 1 impact crater)
GUARANTEED AUTHENTICITY
Member of the Meteoritical Society & International Meteorite Collectors Association #9822 The authenticity of this meteorite has a 100% guarantee. Signed Certificate of Authenticity Included. First class delivery and provenance provided.
1cm scale cube for reference purposes.
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