Meteoritical Bulletin: Entry for Northwest Africa 12310

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Northwest Africa 12310

Basic information

Name: Northwest Africa 12310
This is an OFFICIAL meteorite name.
Abbreviation: NWA 12310
Observed fall: No
Year found: 2018
Country: Morocco
Mass: 74 g

Classification
history:

Recommended:

R4 [explanation]

This is 1 of 58 approved meteorites classified as R4. [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 4-7)

Comments:

Approved 21 Sep 2019

Writeup

Writeup from MB 108:

Northwest Africa 12310 (NWA 12310)

Morocco

Purchased: 2018

Classification: Rumuruti chondrite (R4)

History: (Ziyao Wang) Purchased by Ziyao Wang from Mr. Ayman during the China (Hunan) Mineral & Gem Show in Chenzhou City in May 2018.

Physical characteristics: (Ziyao Wang) 74 g gray-yellow elongated stone.

Petrography: (R. Bartoschewitz, Bart) well delinated PO and BO chondrules (0.4-1.6 mm, av. 0.7 mm) and chondrule fragments are set in light-brown matrix.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa_38.8±0.4(n=17) chromite CRAL83, FFM94 (n=1). Magnetic susceptibility log χ (× 10^-9 m³/kg) = 3.00

Classification: Rumuruti Chondrite (R4, S3, W4)

Specimens: 9.4 g at Kiel and 5.5 g at Münster on deposit, Ziyao Wang holds the main mass, and 4 g with Bart. Polished thin sections Bart and IfP

Data from:
  MB108
  Table 0
  Line 0:

Origin or pseudonym:	desert
Place of purchase:	Chenzhou, Hunan
Date:	P 2018
Mass (g):	74
Pieces:	1
Class:	R4
Shock stage:	S3
Weathering grade:	W4
Fayalite (mol%):	38.8±0.4 (n=17)
Magnetic suscept.:	3.00
Classifier:	R. Bartoschewitz
Type spec mass (g):	9.4 + 5.5
Type spec location:	Kiel + IfP
Main mass:	Ziyao Wang
Finder:	anonymous
Comments:	working name WZ36; submitted by R. Bartoschewitz

Institutions
and collections

IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013)
Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 108, in preparation (2019)

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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Wang Ziyao

Geography:

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 1503 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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