Meteorite NWA 14147 R3-4 Rumuruti Chondrite 7 gram part slice

Description

NORTHWEST AFRICA 14147
R3-4 RUMURUTI CHONDRITE METEORITE
7 GRAM PART SLICE
INTRODUCING A NEW R-TYPE RUMURUTI CHONDRITE METEORITE CONSISTING OF EXOTIC BRECCIA MATERIAL
LITHIC CLASTS
UNEQUILIBRATED CHONDRULES
UNUSUAL MELT ROCK CLASTS PREVIOUSLY FOUND IN ANTARCTIC METEORITES
OFFICIAL CLASSIFICATION DATA SOURCE:
The Meteoritical Society
International Society for Meteoritics and Planetary Science
Lunar and Planetary Institute
Meteoritical Bulletin Database
Northwest Africa 14147
Basic information
Name:
Northwest Africa 14147
This is an OFFICIAL meteorite name.
Abbreviation:
NWA 14147
Observed fall:
No
Year found:
2021
Country:
(Northwest Africa)
Mass:
1053 g
Classification
history:
Recommended:
R3-4
This is 1 of 10 approved meteorites classified as R3-4.
Comments:
Approved 31 Aug 2021
Writeup
Writeup from MB 110:
Northwest Africa 14147
(NWA 14147)
(Northwest Africa)
Purchased: 2021 Nov
Classification: Rumuruti chondrite (R3-4)
History
: Purchased by John Higgins in November 2021 from a dealer in Ouarzazate, Morocco.
Petrography
: (A. Irving,
UWS
and P. Carpenter,
WUSL
) Breccia composed of discrete unequilibrated chondrules (apparent diameter 500 ± 250 µm, N = 25) plus Type 3 and Type 4 chondrite lithic clasts, mineral grains and a large (2 cm) melt rock clast, all set in a fine grained matrix (20 vol.% , pale orange in thin section). Accessory phases in all components are pyrrhotite, pentlandite and sodic plagioclase. The fine grained melt rock clast consists of strongly-zoned euhedral olivine grains (mean grainsize ~50 µm) accompanied by chromite, pyrrhotite, pentlandite and interstitial glass.
Geochemistry
: Olivine in unequilibrated chondrules (Fa
33.8±16.0
, range Fa
13.8-56.4
, N = 6), olivine in melt rock clast (core Fa
20.6
, rim Fa
62.7
; N = 2), olivine in matrix (Fa
41.0±0.6
, range Fa
40.5-41.4
, N = 2), low-Ca pyroxene (Fs
19.8±9.3
Wo
1.6±1.7
, range Fs
10.7-27.9
Wo
0.4-4.0
, N = 4), augite (Fs
21.7
Wo
38.6
).
Classification
: R3-4 chondrite breccia with melt-rock clasts. The unusual melt-rock clasts in this specimen resemble those described in  DaG 013, PCA 91241 and LAP 031275 by Lunning et al. (2018).
Specimens
: 51 g including one polished thin section at
UWB
; remainder with Mr. J. Higgins.
Bibliography:
Lunning N.G., Bischoff A., McCoy T.J., and Corrigan C.M. (2018) Melt clasts in R chondrites: indigenous and foreign. 49th Lunar and Planetary Science Conference, #1552.
Data from:
MB110
Table 0
Line 0:
Place of purchase:
Ouarzazate
Date:
P 2021 Nov
Mass (g):
1053
Pieces:
1
Class:
R3-4
Shock stage:
S2
Weathering grade:
low
Fayalite (mol%):
33.8±16.0
Ferrosilite (mol%):
19.8±9.3
Wollastonite (mol%):
1.6±1.7
Classifier:
A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):
51
Type spec location:
UWB
Main mass:
J. Higgins
Comments:
Work name JH21-1; submitted by A. Irving
Institutions
and collections
University of Washington, Department of Earth and Space Sciences,
Catalogs:
References:
Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Geography:
Coordinates:
Unknown.
Statistics:
This is 1 of 8076 approved meteorites from NWA (plus 1948 unapproved names)
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.
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