Meteoritical Bulletin: Entry for Northwest Africa 8715

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Northwest Africa 8715

Basic information

Name: Northwest Africa 8715
This is an OFFICIAL meteorite name.
Abbreviation: NWA 8715
Observed fall: No
Year found: 2013
Country: Morocco
Mass: 647 g

Classification
history:

Meteoritical Bulletin:	MB 104	(2015)	CO3
Recommended:			CO3 [explanation]

This is 1 of 645 approved meteorites (plus 1 unapproved name) classified as CO3. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites

Comments:

Approved 16 Jan 2015

Writeup

Writeup from MB 104:

Northwest Africa 8715 (NWA 8715)

Morocco

Purchased: Feb 2013

Classification: Carbonaceous chondrite (CO3)

Petrography: Abundant chondrules (48 vol.%) with diameters ranging from 70 to 380 μm are visible. A few chondrules are 400-700 μm. A large number of individual olivine and pyroxene grains (9 vol.%) occur in the matrix. Major phases are olivine and low-Fe pyroxene (Fs<10). Minor phases include plagioclase, troilite and FeNi metal. A relative low abundance of matrix (37 vol.%). Abundant fine-grained inclusions (6 vol.%).

Geochemistry: Olivine (Fa_0.1-39.6); orthopyroxene (Fs_0.1-3.4Wo_0.8-2.8); pigeonite (Fs_1.9-8.8Wo_6.9-14.1); augite (Fs_1.6-3.4Wo_36.9-49.2); plagioclase (An_72-76).

Data from:
  MB104
  Table 0
  Line 0:

Place of purchase:	Agadir
Date:	P Feb 2013
Mass (g):	647
Pieces:	1
Class:	CO3
Shock stage:	S2
Weathering grade:	low
Fayalite (mol%):	30.9±7.0 (n=23)
Ferrosilite (mol%):	2.1±1.6 (n=10); 5.4±3.1 (n=6); 2.2±1.0 (n=4)
Wollastonite (mol%):	1.6±0.9 (n=10); 10.5±3.0 (n=6); 41.4±6.8 (n=4)
Classifier:	Wu Y., PMO
Type spec mass (g):	20
Type spec location:	PMO
Main mass:	Ke Zuokai
Comments:	Submitted by Hsu W.

Institutions
and collections

PMO: Purple Mountain Observatory, Nanjing, China (institutional address; updated 16 Dec 2011)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full

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Geography:

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

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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