header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 16 Dec 2018
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:
Limit to approved meteorite names
Search text:  
Northwest Africa 12284
Basic information Name: Northwest Africa 12284
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12284
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 833 g
Classification
  history:
Recommended:  LL3    [explanation]

This is 1 of 303 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 24 Nov 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 12284 (NWA 12284)

(Northwest Africa)

Purchased: 2018

Classification: Ordinary chondrite (LL3)

History: The meteorite was purchased from a local meteorite dealer in Erfoud, Morocco.

Physical characteristics: Brownish fragments without fusion crust.

Petrography: The meteorite displays a chondritic texture with mostly rounded chondrules (mean diameter about 0.7 mm) in a fine-grained brownish and strongly altered matrix that contains sulfides and rare FeNi metal.

Classification: LL based on magnetic susceptibility.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2018
Mass (g):832.5
Pieces:3
Class:LL3
Shock stage:S1
Weathering grade:W3/4
Fayalite (mol%):13.9±10.9 (0.7-31.8, n=34)
Ferrosilite (mol%):10.9±8.3 (2.2-22.6, n=17)
Wollastonite (mol%):2.3±1.5 (0.6-4.7, n=17)
Magnetic suscept.:4.08
Classifier:A. Greshake, MNB
Type spec mass (g):21.3
Type spec location:MNB
Main mass:Hanno Strufe and Andreas Grünemeyer
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstrasse 43, D-10115 Berlin, Germany (institutional address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6559 approved meteorites from (Northwest Africa) (plus 2021 unapproved names)

Direct link to this page