Meteoritical Bulletin: Entry for Northwest Africa 12333

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Northwest Africa 12333

Basic information

Name: Northwest Africa 12333
This is an OFFICIAL meteorite name.
Abbreviation: NWA 12333
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass: 104.5 g

Classification
history:

Meteoritical Bulletin:	MB 108	(2020)	R5
Recommended:			R5 [explanation]

This is 1 of 39 approved meteorites classified as R5. [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 4-7)

Comments:

Approved 12 Apr 2019

Writeup

Writeup from MB 108:

Northwest Africa 12333 (NWA 12333)

(Northwest Africa)

Purchased: 2017 Mar 31

Classification: Rumuruti chondrite (R5)

History: Purchased in Erfoud by Pierre-Marie Pelé.

Physical characteristics: Dark stone, partially covered with fusion crust. Cut surface reveals dark interior with small chondrules.

Petrography: Highly recrystallized chondrite with average size plagioclase below 50 μm. Abundant sulfide. Accessory magnetite.

Geochemistry: Olivine Fa_39.6±0.4, range Fa_39.1-40.1, Cr₂O₃ in ferroan olivine is 0.0±0.1 wt%, NiO2=0.22±0.20 wt% (n=3). High-Ca pyroxene Fs_29.6Wo_68.7(n=1). Chromite Cr#=0.85 (n=1).

Classification: Rumuruti chondrite (R5)

Specimens: 20.83 g and a polished section at CEREGE. Main mass with Pierre-Marie Pelé

Data from:
  MB108
  Table 0
  Line 0:

Place of purchase:	Erfoud
Date:	P 2017 Mar 31
Mass (g):	104.50
Pieces:	1
Class:	R5
Weathering grade:	weak
Fayalite (mol%):	39.6±0.4 (n=3)
Magnetic suscept.:	3.57
Classifier:	L.K. Ruggiu and J. Gattacceca, CEREGE
Type spec mass (g):	20.83
Type spec location:	CEREGE
Main mass:	Pierre-Marie Pelé
Comments:	Work name PM17C2; submitted by Lisa Krämer Ruggiu

Institutions
and collections

CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)

Catalogs:

References:

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

Find references in NASA ADS:
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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9111 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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