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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:help 647 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  CO3
Recommended:  CO3    [explanation]

This is 1 of 554 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
Writeuphelp
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 (Fa0.1-39.6); orthopyroxene (Fs0.1-3.4Wo0.8-2.8); pigeonite (Fs1.9-8.8Wo6.9-14.1); augite (Fs1.6-3.4Wo36.9-49.2); plagioclase (An72-76).

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 1503 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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