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Northwest Africa 8481
Basic information Name: Northwest Africa 8481
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8481
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 181.1 g
Meteoritical Bulletin:  MB 103  (2014)  CV3
Recommended:  CV3    [explanation]

This is 1 of 553 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 26 Jul 2014
Writeup from MB 103:

Northwest Africa 8481 (NWA 8481)

(Northwest Africa)

Purchased: 2013 June 7

Classification: Carbonaceous chondrite (CV3)

History: Purchased in Erfoud, June 2013

Physical characteristics: A single oriented stone in three fragments. Cut surfaces reveals abundant grayish chondrules up to 2 mm, set in a brownish matrix.

Petrography: (C. Cournède and J. Gattacceca, CEREGE) Chondrules and CAIs set in a fine-grained matrix. Chondrule:matrix ratio is about 1:1. Chondrule mean apparent size 0.61±0.4 mm (N=28). Presence of magnetite (120 μm), sufides (120 μm) and metal (80 μm)

Geochemistry: Olivine Fa15.9±15.2 (PMD=85%, n=17, range 0.6-43.6). Orthopyroxene Fs8.3±8.2Wo1.6±0.8 (PMD=97%, n=10, range Fs0.9-19.5) . Magnetic susceptibility log χ = 3.82 (χ in 10-9 m3/kg).

Classification: Carbonaceous chondrite (CV3). Strong weathering

Specimens: 22.8 g and a polished section in CEREGE. Main mass with P. Thomas

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2013 June 7
Mass (g):181.1
Weathering grade:high
Fayalite (mol%):15.9±15.2 (PMD=85%, N=17)
Ferrosilite (mol%):8.3±8.2 (PMD=97%, N=10)
Wollastonite (mol%):1.6±0.8
Magnetic suscept.:3.82
Classifier:C. Cournède and J. Gattacceca, CEREGE
Type spec mass (g):22.8
Type spec location:CEREGE
Main mass:P. Thomas
Comments:Submitted by J. Gattacceca
   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)
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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     This is 1 of 7655 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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