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Northwest Africa 12602
Basic information Name: Northwest Africa 12602
     This is NOT an official name: Discredited meteorite.
Abbreviation: NWA 12602
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 898 g
Classification
  history:
Recommended:  H4-melt breccia    [explanation]

Comments: Entered 19 May 2019
Revised 11 Jun 2019: Same meteorite as NWA 11572
Writeuphelp
Writeup from MB 108:

Northwest Africa 12602 (NWA 12602)

(Northwest Africa)

Purchased: March 2017

Classification: Ordinary chondrite (H4, melt breccia)

History: Purchased by Sean Tutorow and Brahim Tahiri from meteorite hunters in Morocco.

Petrography: The rock is a melt breccia. Melted regions are dark; they contain numerous metal-sulfide veins, polycrystalline troilite and rare cellular, rapidly cooled metal-sulfide assemblages. There are rare grains of coarse troilite. Most metal grains are not attached to sulfide grains. Some low-Ca pyroxene grains exhibit polysynthetic twinning, perhaps caused by post-shock quenching. There is strong mosaic extinction evident in the olivine grains.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P March 2017
Mass (g):897.52
Pieces:1
Class:H4-melt breccia
Shock stage:S5
Weathering grade:W1
Fayalite (mol%):17.5±0.8 (n=8)
Ferrosilite (mol%):16.0±0.6 (n=5)
Wollastonite (mol%):0.7±0.2 (n=5)
Classifier:Al. Rubin, UCLA
Type spec mass (g):28.89
Type spec location:UCLA
Main mass:Sean Tutorow
Comments:Submitted by Alan Rubin
Institutions
   and collections
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

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