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Northwest Africa 8763
Basic information Name: Northwest Africa 8763
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8763
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 22 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  CM2
Recommended:  CM2    [explanation]

This is 1 of 544 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Comments: Approved 13 Feb 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 8763 (NWA 8763)

(Northwest Africa)

Purchased: 2014

Classification: Carbonaceous chondrite (CM2)

History: The meteorite was bought 2014 on a mineral fair in Munich, Germany.

Physical characteristics: The small almost black individual is partly covered with fusion crust.

Petrography: The meteorite is composed of small (about 0.1-0.4 mm in diameter) chondrules, chondrule pseudomorphs, mineral fragments and rare CAIs set into an abundant fine-grained matrix dominated by phyllosilicates, carbonates, and pyrrhotite; poorly-characterized-phase lumps are present and many components are surrounded by fine-grained accretionary rims. Few chondrules show light brownish staining due to terrestrial weathering.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Munich, Germany
Date:P 2014
Mass (g):22
Pieces:1
Class:CM2
Shock stage:S1
Weathering grade:low
Fayalite (mol%):22.3±21.4 (0.3-51.4, n=37)
Ferrosilite (mol%):1.5±0.3 (1-2, n=13)
Wollastonite (mol%):1.9±1.3 (0.8-4.2, n=13)
Classifier:A. Greshake, MNB
Type spec mass (g):4.4
Type spec location:MNB
Main mass:Harald Stehlik
Comments:Submitted by Ansgar Greshake
Institutions
   and collections		 MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Stehlik: Harald Stehlik, 1220 Wien, Austria (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7579 approved meteorites from (Northwest Africa) (plus 1969 unapproved names)

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