header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 18 Aug 2019
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Northwest Africa 12762
Basic information Name: Northwest Africa 12762
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12762
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 336 g
Classification
  history:
Recommended:  CV3    [explanation]

This is 1 of 503 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 3 Aug 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12762 (NWA 12762)

(Northwest Africa)

Purchased: 2012 Oct

Classification: Carbonaceous chondrite (CV3)

History: Purchased by Beat Booz in October 2012 from a Moroccan dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Well-formed PO and granular chondrules (apparent diameter 800 ± 240 µm, N = 22) together with very fine grained, irregularly-shaped CAI are set in a fine grained matrix (~30 vol.%, sepia-brown in thin section).

Geochemistry: Olivine (Fa3.6±3.8 (range Fa0.3-8.0), N = 4), low-Ca pyroxene (Fs1.1±0.4Wo2.0±2.1 (range Fs0.9-1.6Wo0.7-4.5), N = 3), diopside (Fs1.2±0.1Wo38.1±0.2 (range Fs1.-1.3Wo38.4-37.7), N = 2).

Classification: Carbonaceous chondrite (CV3).

Specimens: 21.0 g including one polished thin section at UWB; remainder with Mr. B. Booz.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2012 Oct
Mass (g):336.2
Pieces:1
Class:CV3
Shock stage:S2
Weathering grade:low
Fayalite (mol%):3.6±3.8
Ferrosilite (mol%):1.1±0.4
Wollastonite (mol%):2.0±2.1
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):21.0
Type spec location:UWB
Main mass:B. Booz
Comments:Work name BB-43; submitted by A. Irving
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Beat Booz      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6877 approved meteorites from (Northwest Africa) (plus 2037 unapproved names)

Direct link to this page