header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 21 Sep 2019
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 11870
Basic information Name: Northwest Africa 11870
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11870
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 30.9 g
Classification
  history:
Recommended:  L5    [explanation]

This is 1 of 6528 approved meteorites (plus 4 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 22 Jun 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11870 (NWA 11870)

(Northwest Africa)

Purchased: 2005

Classification: Ordinary chondrite (L5)

History: Purchased by an anonymous collector from a dealer at the Munich Show in 2005, subsequently acquired by the Hollis Collection and then donated to PSF.

Petrography: (A. Irving and S. Kuehner, UWS) Mostly recrystallized with sparse remnant chondrules.

Geochemistry: Olivine (Fa24.7-24.8, N = 3), orthopyroxene (Fs21.4-21.5Wo1.3-1.2, N = 3), subcalcic augite (Fs12.0Wo29.1), augite (Fs11.1Wo43.8).

Classification: Ordinary chondrite (L5).

Specimens: The entire specimen including one polished thin section is at PSF.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Munich
Date:P 2005
Mass (g):30.91
Pieces:1
Class:L5
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):24.7-24.8
Ferrosilite (mol%):21.4-21.5
Wollastonite (mol%):1.3-1.2
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):30.91
Type spec location:PSF
Main mass:PSF
Comments:Work name CHC18017; submitted by A. Irving
Institutions
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
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 6916 approved meteorites from (Northwest Africa) (plus 2027 unapproved names)

Direct link to this page