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Northwest Africa 6082
Basic information Name: Northwest Africa 6082
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6082
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass:help 85 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  LL3
Recommended:  LL3    [explanation]

This is 1 of 343 approved meteorites classified as LL3.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 22 Oct 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 6082 (NWA 6082)

(Northwest Africa)

Purchased: 2008 Sep

Classification: Ordinary chondrite (LL3)

Petrography: (A. Irving and S. Kuehner, UWS) Relatively metal-poor specimen containing well-formed, fairly large ( to 1 mm) chondrules. The content of metal (+ minor Fe hydroxide) = 2 vol%. Minerals are olivine, low-Ca pyroxene, subcalcic augite, sodic plagioclase, altered kamacite, chromite, iron phosphide, troilite.

Geochemistry: Olivine (Fa13.0-59.3; Cr2O3 in ferroan olivine 0.04-0.08 wt.%, mean 0.06, s.d. 0.01, N = 7), low-Ca pyroxene (Fs1.2-19.5Wo0.5-6.0), subcalcic augite (Fs23.7-39.6Wo26.7-31.6). Oxygen isotopes (D. Rumble, CIW): analyses of acid-washed subsamples by laser fluorination gave δ18O 5.91, 5.99; δ17O 3.84, 3.82; Δ17O 0.730, 0.669 per mil.

Classification: Chondrite (LL3.5). Subtype estimated to be 3.5 based on Cr2O3 range in ferroan olivine. Estimation of subtype based on histograms (Fig. 4) in Grossman and Brearley (2005).

Bibliography:
  • Grossman J.N. and Brearley A.J. (2005) The onset of metamorphism in ordinary and carbonaceous chondrites. Meteorit. Planet. Sci. 40, 87-122. (link)
Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2008 Sep
Mass (g):85
Pieces:1
Class:LL3
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):13.0-59.3 (n=9)
Ferrosilite (mol%):1.2-19.5
Wollastonite (mol%):0.5-6.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):17.6
Type spec location:UWB
Main mass:B. Scarborough
Comments:BS 10-1; submitted by A. Irving
Plots: O isotopes:  
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)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
CIW: Carnegie Insitution Washington, Geophysical Laboratory, 5251 Broad Branch Rd., NW, Washington DC 20015, United States (institutional address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7354 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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