CK4 Carbonaceous Chondrite - 35g NWA 15319 / NEW FIND...Beautiful RARE CK4!!

Description

AN EXCEPTIONAL SPECIMEN
CK4
CARBONACEOUS
CHONDRITE METEORITE
35 GRAMS
YOU ARE PURCHASING
NWA 15319
CK4 CARBONACEOUS CHONDRITE METEORITE
This meteorite was classified & approved as
NWA 15319
Classified and studied by Dr Anthony J. Irving and team at University of Washington
AUTHENTICITY  is GUARANTEED
CERTIFICATE OF AUTHENTICITY INCLUDED
Most of what we are selling comes directly from family and friends finding
meteorites in the desert and sending them to us here in U.S..  With a family member now living here and as one of the founders of NWA Direct Meteorites, we hope to continue to provide great meteorites at reasonable prices.
We are open to offers on all of our meteorites.
OFFICIAL CLASSIFICATION DATA SOURCE:
The Meteoritical Society
International Society for Meteoritics and Planetary Science
Lunar and Planetary Institute
Meteoritical Bulletin Database
Northwest Africa 15319
Basic information
Name:
Northwest Africa 15319
This is an OFFICIAL meteorite name.
Abbreviation:
NWA 15319
Observed fall:
No
Year found:
2022
Country:
Mauritania
Mass:
1013 g
Classification
history:
Recommended:
CK4
[explanation]
This is 1 of 119 approved meteorites classified as CK4.
[show all]
Search for other:
Carbonaceous chondrites
,
Carbonaceous chondrites (equilibrated)
,
CK chondrites
,
CK chondrites (type 4-6)
, and
CV-CK clan chondrites
Comments:
Approved 22 Oct 2022
Writeup
Writeup from MB 111:
Northwest Africa 15319
(NWA 15319)
Mauritania
Purchased: 2022 Apr
Classification: Carbonaceous chondrite (CK4)
History
: Purchased in April 2022 from a dealer in the Inchiri region of Mauritania by an Algerian team represented by David Lehman.
Petrography
: (A. Irving,
UWS
and J. Boesenberg,
BrownU
) Separated well-formed, equilibrated, glass-free chondrules containing Cr-magnetite are set in a medium-grained matrix containing stained Cr-magnetite, intermediate plagioclase and chlorapatite plus very minor kamacite and pentlandite.
Geochemistry
: Olivine (Fa
32.3±0.2
, range Fa
32.0-32.7
, N = 6), low-Ca pyroxene (Fs
27.0±0.5
Wo
0.7±0.1
, range Fs
26.2-27.7
Wo
0.6-0.8
, N = 6), augite (Fs
10.0±0.4
Wo
46.7±1.3
, range Fs
8.3-11.5
Wo
44.8-47.8
, N = 5), plagioclase (An
32.0-39.4
Or
2.9-4.7
, N = 4), magnetite (Cr
2
O
3
4.2-5.2 wt.%, N =7).
Classification
: Carbonaceous chondrite (CK4).
Specimens
: 20.3 g including one polished thin section at
UWB
; remainder with Mr. D. Lehman.
Data from:
MB111
Table 0
Line 0:
Place of purchase:
Inchiri, Mauritania
Date:
P 2022 Apr
Mass (g):
1013
Pieces:
many
Class:
CK4
Shock stage:
S2
Weathering grade:
low
Fayalite (mol%):
32.3±0.2
Ferrosilite (mol%):
27.0±0.5
Wollastonite (mol%):
0.7±0.1
Classifier:
A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):
20.3
Type spec location:
UWB
Main mass:
D. Lehman
Comments:
Work name DL 1120; submitted by A. Irving
Institutions
and collections
UWS
: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB
: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
BrownU
: Brown University Providence, RI 02912, United States (institutional address; updated 7 Sep 2019)
Catalogs:
References:
Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:
Coordinates:
Unknown.
Statistics:
This is 1 of 182 approved meteorites from
Mauritania
(plus 1 unapproved name) (plus 2 impact craters)
Also see:
This lists the most popular meteorites among people who looked up this meteorite.
Revision
history:
This lists important revisions made to data for this record.