NWA 14133 H5 Chondrite Meteorite 8.4g frag with unusual number of chondrules

Description

NORTHWEST AFRICA 14133
H5 CHONDRITE METEORITE
8.4 GRAM
WINDOWED FRAGMENT
ORIGINALLY THOUGHT TO BE A TYPE 3 METEORITE, HOWEVER...
CLASSIFICATION CAME BACK WITH A MUCH HIGHER PETROLOGICAL GRADE
THIS IS A VERY INTERESTING METEORITE
WITH MORE CHONDRULES THEN YOUR TYPICAL TYPE 5 CHONDRITE
MOST OF THE METAL IS INTERNAL NOT VISIBLE WITH THE EXCEPTION OF A FEW SPECKS
OFFICIAL CLASSIFICATION DATA SOURCE:
The Meteoritical Society
International Society for Meteoritics and Planetary Science
Lunar and Planetary Institute
Meteoritical Bulletin Database
Northwest Africa 14133
Basic information
Name:
Northwest Africa 14133
This is an OFFICIAL meteorite name.
Abbreviation:
NWA 14133
Observed fall:
No
Year found:
2020
Country:
Morocco
Mass:
2.06 kg
Classification
history:
Recommended:
H5
This is 1 of 10635 approved meteorites (plus 19 unapproved names) classified as H5.
Comments:
Approved 24 Jul 2021
Writeup
Writeup from MB 110:
Northwest Africa 14133
(NWA 14133)
Morocco
Find: 2020 Mar
Classification: Ordinary chondrite (H5)
History
: (J. Higgins) Mohamed Iken found a single 2057 g stone in March of 2020 in an area between Tagounite and Zagora, Morocco. Mohamed Elguirah purchased the sample and sent to John Higgins for classification.
Physical characteristics
: Sample has a dark-brown exterior with visible chondrules on the surface. The cut face shows the interior has a chondritic texture with abundant chondrules separated by oxidized veinlets.
Petrography
: Description and classification (A. Love,
App
) Sample shows a chondritic texture composed of well-defined chondrules and fragments set within a recrystallized matrix crosscut by FeOH minerals. Chondrules have an average apparent diameter of 557 µm (n=119). Chondrules shows recrystallized mesostasis. Most low-Ca pyroxene is orthoenstatite. Secondary plagioclase has an average grainsize of 45µm (n=26). Additional minerals: chromite, secondary calcite, apatite and troilite.
Geochemistry
: (A. Love,
App
) Olivine (Fa
17.7±0.2
, Fe/Mn=34.5±0.9, n=16); low-Ca pyroxene (Fs
15.5±0.2
Wo
1.3±0.1
, Fe/Mn=21.6±0.6, n=14).
Classification
: Ordinary chondrite (H5, C-S3, W3). Based on textures, size of secondary plagioclase and mineral compositions, sample is a H5.
Specimens
: John Higgins holds the main mass. A polished thin section and a 23.48g sliced individuals are on deposit at
App
.
Data from:
MB110
Table 0
Line 0:
Place of purchase:
Morocco
Date:
2020 Mar
Mass (g):
2057
Pieces:
1
Class:
H5
Shock stage:
C-S3
Weathering grade:
W3
Fayalite (mol%):
17.7±0.2
Ferrosilite (mol%):
15.5±0.2
Wollastonite (mol%):
1.3±0.1
Magnetic suscept.:
4.67
Classifier:
A. Love, App
Type spec mass (g):
23.48
Type spec location:
App
Main mass:
John Higgins
Finder:
Mohamed Iken
Comments:
Submitted by Anthony Love
Institutions
and collections
Department of Geology, Appalachian State University, Boone, NC
Catalogs:
References:
Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Geography:
Coordinates:
Unknown.
Statistics:
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 AND PRESENT THIS METEORITE. THIS OFFICIALLY CLASSIFIED HIGH QUALITY METEORITE  HAS CONTRIBUTED TO THE SCIENCE OF METEORITICS THROUGH RESEARCH LED BY ANTHONY LOVE.
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.
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