Meteoritical Bulletin: Entry for Northwest Africa 12535

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Northwest Africa 12535

Basic information

Name: Northwest Africa 12535
This is an OFFICIAL meteorite name.
Abbreviation: NWA 12535
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass: 467 g

Classification
history:

Meteoritical Bulletin:	MB 108	(2020)	CV3
Recommended:			CV3 [explanation]

This is 1 of 470 approved meteorites (plus 2 unapproved names) classified as CV3. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites

Comments:

Approved 31 Mar 2019

Writeup

help

Writeup from MB 108:

Northwest Africa 12535 (NWA 12535)

(Northwest Africa)

Purchased: May 2018

Classification: Carbonaceous chondrite (CV3)

History: Purchased by Su Lei from a Moroccan dealer during the China (Hunan) International Mineral & Gem Expo (CMGE) in Chenzhou, China.

Physical characteristics: Single stone, sand blasted exterior. Saw-cut surfaces show numerous large chondrules and scattered CAIs set in a dark brown matrix. Many chondrules have a reddish color.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows primarily type I chondrules, fine-grained matrix makes up approximately 50% of this meteorite.

Geochemistry: (C. Agee UNM) Olivine Fa_5.9±5.0, Fe/Mn=88±81, Cr₂O₃=0.13±0.06 (wt%), n=20. low-Ca pyroxene Fs_3.1±2.7Wo_1.6±1.2, n=8; aluminous diopside Fs_1.1±0.0Wo_38.1±5.6, Al₂O₃=5.3±3.7 (wt%), n=2.

Classification: Carbonaceous chondrite CV3

Specimens: 22 g including a probe mount on deposit at UNM, Mendy Ouzillou holds 91.5 g, Su Lei holds the main mass.

Data from:
  MB108
  Table 0
  Line 0:

Place of purchase:	Chenzhou, China
Date:	P May 2018
Mass (g):	467
Pieces:	1
Class:	CV3
Shock stage:	low
Weathering grade:	moderate
Fayalite (mol%):	5.9±5.0
Ferrosilite (mol%):	3.1±2.7
Wollastonite (mol%):	1.6±1.2
Classifier:	C. Agee, UNM
Type spec mass (g):	22
Type spec location:	UNM
Main mass:	Su Lei
Comments:	Submitted by C. Agee

Institutions
and collections

UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

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.

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