header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 4 Jul 2020
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:
Include past classifications in search
Limit to approved meteorite names
Search text:  
Northwest Africa 12017
Basic information Name: Northwest Africa 12017
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12017
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass:help 130.8 g
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  LL4
Recommended:  LL4    [explanation]

This is 1 of 368 approved meteorites classified as LL4.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 23 Sep 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 12017 (NWA 12017)

(Northwest Africa)

Purchased: 2008 Feb

Classification: Ordinary chondrite (LL4)

Petrography: Well defined chondrules are seen in the slide surrounded by some opaque and clastic matrix. Minor undulatory extinction is seen with some mosaicism. Shock veins also seen in parts. >60% of metal has been affected by oxidation from weathering.  (S. Yokoyama, ROM).

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Tucson Gem and Mineral Show
Date:P 2008 Feb
Mass (g):130.78
Pieces:1
Class:LL4
Shock stage:S3
Weathering grade:W3
Fayalite (mol%):28.1±1
Classifier:S. Yokoyama, ROM
Type spec mass (g):21.0
Type spec location:ROM
Main mass:DGregory
Comments:Catalogued at the Royal Ontario Museum as LM58174. Formerly DGR-031-16; submitted by V. Di Cecco, ROM
Institutions
   and collections
ROM: Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario M5S 2C6, Canada (institutional address; updated 18 Oct 2011)
DGregory: David Gregory, 230 First Avenue, Suite 108, St. Thomas, Ontario N5R 4P5, Canada (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7320 approved meteorites from (Northwest Africa) (plus 1973 unapproved names)

Direct link to this page