header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 12 Mar 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 12707
Basic information Name: Northwest Africa 12707
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12707
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 285 g
Classification
  history:
Meteoritical Bulletin:  MB 108  (2020)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 658 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 18 Aug 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12707 (NWA 12707)

(Northwest Africa)

Purchased: 2019

Classification: Ureilite

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

Physical characteristics: Single dark brownish stone without fusion crust.

Petrography: The meteorite shows a cumulate texture composed of up to 1.5 mm sized olivine and pigeonite grains. Olivine shows strong compositional zoning and displays characteristic reduced rims; the meteorite contains flaky graphite.

Geochemistry: reduced rims in olivine: Fa2.4-7.3; olivine contains 0.75±0.03 wt% Cr2O3 and 0.34±0.02 wt% CaO

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Zagora, Morocco
Date:P 2019
Mass (g):284.9
Pieces:1
Class:Ureilite
Shock stage:S2
Weathering grade:moderate
Fayalite (mol%):15.7±0.1 (n=12)
Ferrosilite (mol%):13.4±0.1 (n=13)
Wollastonite (mol%):9.3±0.1 (n=12)
Classifier:A. Greshake, MNB
Type spec mass (g):22.7
Type spec location:MNB
Main mass:Fabien Kuntz
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)
Also see:
  This lists the most popular meteorites among people who looked up this meteorite.
Revision
  history:
  This lists important revisions made to data for this record.

Direct link to this page