-40%
NWA 13509 LL4-6 Chondrite Meteorite 10.5g fusion crusted end cut with regmaglypt
$ 0.52
- Description
- Size Guide
Description
NORTH WEST AFRICA 13509LL4-6 TYPE
BRECCIA CHONDRITE METEORITE
10.5 GRAM END CUT
THE MATRIX IS FILLED WITH BRECCIA OF TYPE 6 LITHIC CLASTS THAT TRANSITION FROM DARK GREY TO LIGHT GREY TO LEATHER BROWN. THIS SPECIMEN IN PARTICULAR SHOWS MULTIPLE LITHOLOGIES MAKING CHONDRULES EASY TO IDENTIFY WHILE THE MATRIX IS HIGHLY RECRYSTALLIZED GIVING IT A BEAUTIFUL APPEARANCE.
THIS METEORITE HAS FRESH BLACK FUSION CRUST COVERED IN REGMAGLYPTS WITH SOME FAINT FLOW LINES AND CONTRACTION CRACKS!
IT HAS BEEN POLISHED ON ONE SIDE.
OFFICIAL CLASSIFICATION DATA SOURCE:
The Meteoritical Society
International Society for Meteoritics and Planetary Science
Lunar and Planetary Institute
Meteoritical Bulletin Database
Northwest Africa 13509
Basic information
Name:
Northwest Africa 13509
This is an OFFICIAL meteorite name.
Abbreviation:
NWA 13509
Observed fall:
No
Year found:
2018
Country:
(Northwest Africa)
Mass:
1239 g
Classification
history:
Recommended:
LL4-6
This is 1 of 78 approved meteorites classified as LL4-6.
Comments:
Approved 2 Nov 2020
Writeup
Writeup from MB 109:
Northwest Africa 13509
(NWA 13509)
(Northwest Africa)
Purchased: 2018 Sep
Classification: Ordinary chondrite (LL4-6)
History
: Purchased by John Higgins in September 2018 from a Mauritanian dealer.
Petrography
: (A. Irving,
UWS
and P. Carpenter,
WUSL
) Very fresh recrystallized breccia composed of Type 6 lithic clasts (containing rare remnant chondrules) plus large (up to 5 mm in diameter), well-formed, equilibrated discrete chondrules (Type 4) in a fine grained, highly recrystallized matrix containing troilite, pentlandite, taenite and chromite.
Geochemistry
: Olivine (31.2±0.2, range Fa
30.9-31.5
, N = 5), low-Ca pyroxene (Fs
25.4±0.1
Wo
1.8±0.3
, range Fs
25.3-25.6
Wo
1.3-2.0
, N = 5), augite (Fs
10.5±0.3
Wo
43.7±0.3
, range Fs
10.2-10.7
Wo
43.5-44.1
, N = 3).
Classification
: Ordinary chondrite (LL4-6 breccia, highly recrystallized).
Specimens
: 45 g including one polished thin section at
UWB
; remainder with Mr. J. Higgins.
Data from:
MB109
Table 0
Line 0:
Place of purchase:
Mauritania
Date:
P 2018 Sep
Mass (g):
1239
Pieces:
2
Class:
LL4-6
Shock stage:
S2
Weathering grade:
W0/1
Fayalite (mol%):
31.2±0.2
Ferrosilite (mol%):
25.4±0.1
Wollastonite (mol%):
1.8±0.3
Classifier:
A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):
45
Type spec location:
UWB
Main mass:
J. Higgins
Comments:
Work name JH20-5; submitted by A. Irving
Institutions
and collections
University of Washington Seattle
Washington Univ St. Louis
References:
Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Geography:
Coordinates:
Unknown.
IMCA ( INTERNATIONAL METEORITE COLLECTORS ASSOCIATION )
I AM MEMBER # 9822 JOHN HIGGINS. THIS METEORITE IS FROM MY PERSONAL COLLECTION. I AM THE MAIN MASS HOLDER WITH NO BREAKS IN THE CHAIN OF PROVENANCE. MY NAME MATCHES THE ONE LISTED IN THE METEORITICAL SOCIETY BULLETIN OF WHICH I AM A LONGTIME MEMBER IN GOOD STANDING. I HAVE GONE THROUGH GREAT LENGTHS TO PERSONALLY PROCURE, CURATE, CUT, EXTENSIVELY POLISH AND PRESENT THIS METEORITE. THIS OFFICIALLY CLASSIFIED HIGH QUALITY METEORITE HAS CONTRIBUTED TO THE SCIENCE OF METEORITICS THROUGH RESEARCH LED BY THE WORLD RENOWN TEAM OF TONY IRVING AND PAUL CARPENTER.
GUARANTEED AUTHENTICITY
Member of the Meteoritical Society & International Meteorite Collectors Association The authenticity of this meteorite has a 100% guarantee.
Signed Certificate of Authenticity Included
. First class delivery and provenance provided exhibiting important details of the classification & petrography.
1cm scale cube for reference purposes not included.
SHIPPING: Shipping and Delivery
Includes postage costs, packaging & handling. International shipping may be subject to import duties or other taxes. I normally dispatch your order the following day after payment is completed (Mon-Sat).Your goods will be shipped from USA, if you live outside US, the Items normally take 7-14 days but please allow up to 20 days for delivery in case of postal delays.
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