header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 11 Oct 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 12695
Basic information Name: Northwest Africa 12695
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12695
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 224 g
Classification
  history:
Recommended:  Lunar (anorth)    [explanation]

This is 1 of 72 approved meteorites classified as Lunar (anorth).   [show all]
Search for other: Lunar meteorites
Comments: Approved 9 Jul 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12695 (NWA 12695)

(Northwest Africa)

Purchased: March 2015

Classification: Lunar meteorite (anorth)

History: Purchased from a meteorite dealer in Erfoud, Morocco.

Physical characteristics: Single stone consisting of approximately 80% white to light-gray colored, brecciated lithology and 20% dark-colored lithology containing fragments of white to light-gray colored clasts.

Petrography: (C. Agee,UNM) Microprobe examination was performed on a polished slab of the UNM deposit sample. The dominant lithology is an anorthosite with approximately 90-95% modal plagioclase with minor amounts of ubiquitous olivine, pyroxene, and ilmenite. The minor lithology is a fragmental breccia of primarily plagioclase, olivine, and pyroxene. Minor amounts of ilmenite, chromite, and silica-alkali feldspar intergrowths were also observed.

Geochemistry: (C. Agee,UNM) Plagioclase An96.2±0.8Ab3.6±0.7Or0.2±0.1, n=9; clinopyroxene Fs31.9±10.0Wo20.0±8.9, Fe/Mn=58±6, n=13; olivine Fa38.5±2.0, Fe/Mn=103±2.

Classification: Lunar, anorthosite.

Specimens: 21.4 g on deposit at UNM, DPitt holds the main mass.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P March 2015
Mass (g):224
Pieces:1
Class:Lunar (anorth)
Shock stage:high
Weathering grade:low
Fayalite (mol%):38.5±2.0
Ferrosilite (mol%):31.9±10.0
Wollastonite (mol%):20.0±8.9
Classifier:C. Agee, UNM
Type spec mass (g):21.4
Type spec location:UNM
Main mass:Darryl Pitt
Comments:Field name MCVICH-003; submitted by C. Agee, UNM
Institutions
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6968 approved meteorites from (Northwest Africa) (plus 2012 unapproved names)

Direct link to this page