NWA 15335 R3 Rumuruti Chondrite Meteorite 17.9 gram end cut - unequlibrated -

Description

NORTH WEST AFRICA 15335
R3 RUMURUTI
TYPE
PRIMITIVE CHONDRITE METEORITE
17.9 GRAM END CUT
MANY TINY UNEQUILIBRATED CHONDRULES WITH DEVITRIFIED GLASS INTACT.
A HIGHLY PRIMITIVE METEORITE AND FRESH TOO!
THE MATRIX IS SPLATTERED WITH INTERESTING LOOKING LITHIC CLASTS.
THIS SPECIMEN HAS A HIGH POLISHED WINDOW TO THE INTERIOR.
OFFICIAL CLASSIFICATION DATA SOURCE:
The Meteoritical Society
International Society for Meteoritics and Planetary Science
Lunar and Planetary Institute
Meteoritical Bulletin Database
Northwest Africa 15335
Basic information
Name:
Northwest Africa 15335
This is an OFFICIAL meteorite name.
Abbreviation:
NWA 15335
Observed fall:
No
Year found:
2020
Country:
Algeria
Mass:
1195 g
Classification
history:
Recommended:
R3
This is 1 of 63 approved meteorites classified as R3.
Comments:
Approved 22 Oct 2022
Writeup
Writeup from MB 111:
Northwest Africa 15335
(NWA 15335)
Algeria
Purchased: 2020 Feb
Classification: Rumuruti chondrite (R3)
History
: Purchased by John Higgins in February 2020 from a Sahrawi dealer in Algeria.
Petrography
: (A. Irving,
UWS
and J. Boesenberg,
BrownU
) The specimen consists predominantly of well-formed unequilibrated chondrules (apparent diameter 560±290 µm, N = 25) containing devitrified glass, but also present are some related lithic chondrite clasts and sparse equigranular lithic clasts. These are set in a fine grained matrix (~40 vol.%, brown in thin section) containing abundant pentlandite, as well as accessory chromite, troilite and minor Fe metal. Two large (1-2 cm) lithic clasts in the studied thin section are composed of an equigranular assemblage (mean grainsize ~100 µm) of normally-zoned olivine, chromite, sulfides and glass.
Geochemistry
: Olivine in chondrules (Fa
31.4±8.9
, range Fa
16.1-42.9
, N = 11), low-Ca pyroxene in chondrules (Fs
13.0±6.5
Wo
1.4±1.6
, range Fs
7.4-21.7
Wo
0.2-4.1
, N = 5), subcalcic augite in chondrules (Fs
16.6±1.3
Wo
29.6±0.9
, range Fs
15.6-17.5
Wo
28.9-30.2
, N = 2), augite in chondrules (Fs
11.1±0.8
Wo
45.6±1.0
, range Fs
10.6-12.1
Wo
46.2-44.5
, N = 3), olivine in matrix (Fa
40.2±7.4
, range Fa
27.7-50.0
, N = 6), olivine in equigranular clast (Fa
29.2±2.8
, range Fa
27.2-31.2
, N = 2).
Classification
: R3 chondrite breccia (with several large equigranular-textured clasts).
Specimens
: 47 g including one polished thin section at
UWB
; remainder with Mr. K. Castillo
Data from:
MB111
Table 0
Line 0:
Place of purchase:
Algeria
Date:
P 2020 Feb
Mass (g):
1195
Pieces:
23
Class:
R3
Shock stage:
S2
Weathering grade:
low
Fayalite (mol%):
31.4±8.9
Ferrosilite (mol%):
13.0±6.5
Wollastonite (mol%):
1.4±1.6
Classifier:
A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):
47
Type spec location:
UWB
Main mass:
J. Higgins
Comments:
Work name JH22-4; submitted by A. Irving
Institutions
and collections
University of Washington, Department of Earth and Space Sciences
Brown University
Catalogs:
References:
Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Geography:
Coordinates:
Unknown.
Statistics:
This is 1 of 1232 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)
( 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 JOSEPH BOSENBERG AT BROWN UNIVERSITY.
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.
COMBINING SHIPMENTS: Please request a total combined invoice after you are done bidding on all items. Postage can vary when buying multiple items based upon weight.
CANADA: Shipping to you may be slightly cheaper than Global destinations, please request a total for single items.