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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:help 467 g
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 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 Fa5.9±5.0, Fe/Mn=88±81, Cr2O3=0.13±0.06 (wt%), n=20. low-Ca pyroxene Fs3.1±2.7Wo1.6±1.2, n=8; aluminous diopside Fs1.1±0.0Wo38.1±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:
  Table 0
  Line 0:
Place of purchase:Chenzhou, China
Date:P May 2018
Mass (g):467
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
   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)
References: Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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     This is 1 of 9743 approved meteorites from (Northwest Africa) (plus 1857 unapproved names)

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