header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 5 Sep 2024
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 7170
Basic information Name: Northwest Africa 7170
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7170
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 250 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  L3
Recommended:  L3    [explanation]

This is 1 of 861 approved meteorites (plus 2 unapproved names) classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 2 Feb 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 7170 (NWA 7170)

(Northwest Africa)

Purchased: 2011

Classification: Ordinary chondrite (L3)

History: Purchased by Marcin Cimała in 2011 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed chondrules (1.8±0.9 mm) in a finer matrix.

Geochemistry: Olivine (Fa0.4-39.2, Cr2O3 in ferroan olivine 0.06-0.11 wt.%, mean 0.09±0.02 wt.%, N = 8), orthopyroxene (Fs3.3-22.2Wo0.2-2.9, N = 3), subcalcic augite (Fs15.3Wo27.2), augite (Fs13.2Wo40.8).

Classification: Ordinary chondrite (L3).

Specimens: 20.3 g including one polished thin section at PSF; main mass with Mr. M. Cimała.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2011
Mass (g):250
Pieces:1
Class:L3
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):0.4-39.2 (N = 8)
Ferrosilite (mol%):3.3-22.2
Wollastonite (mol%):0.2-2.9
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.3
Type spec location:PSF
Main mass:M. Cimala
Comments:MC 097; submitted by P. Sipiera
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. 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 9914 approved meteorites from (Northwest Africa) (plus 1841 unapproved names)

Direct link to this page