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Northwest Africa 6492
Basic information Name: Northwest Africa 6492
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6492
Observed fall: No
Year found: 2004
Country: (Northwest Africa)
Mass:help 45 g
Classification
  history:
Meteoritical Bulletin:  MB 99  (2011)  R3-6
Recommended:  R3-6    [explanation]

This is 1 of 34 approved meteorites classified as R3-6.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)
Comments: Approved 29 Dec 2010
Writeuphelp
Writeup from MB 99:

Northwest Africa 6492 (NWA 6492)

(Northwest Africa)

Purchased: Jan 2004

Classification: Rumuruti chondrite (R3-6)

History: A single stone was purchased by Mr. Edwin Thompson in January, 2004 and subsequently cut into two pieces. The entire sample was donated to Cascadia by Mr. Thompson on May 27, 2004. The original mass was estimated to be ~45 g.

Physical characteristics: Exterior is brownish-black with a waxy fusion crust that appears weakly weathered. The interior is brownish-red, with black to light-brown chondritic-textured clasts.

Classification: Rumuruti chondrite (R3-6)

Specimens: Three pieces of the stone are available at Cascadia as a type specimen totaling 40.9 g, in addition to one polished thin section.

Data from:
  MB99
  Table 0
  Line 0:
Place of purchase:Midelt, Morocco
Date:P Jan 2004
Mass (g):~45
Pieces:1
Class:R3-6
Shock stage:S2-4
Weathering grade:low
Fayalite (mol%):30.7±12.6
Ferrosilite (mol%):19.9±16.0, 17.7±7.9
Wollastonite (mol%):1.8±1.8, 40.8±6.5
Classifier:Niina Jamsja and Alex Ruzicka, Cascadia
Type spec mass (g):40.9
Type spec location:Cascadia
Main mass:Cascadia
Comments:Laboratory number CML0215; submitted by Alex Ruzicka
Institutions
   and collections		 Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
Thompson: Edwin Thompson, 5150 Dawn St., Lake Oswego, OR 97035, United States (private address)
Catalogs:
References: Published in Meteoritical Bulletin, No. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names)

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