header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 14 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 12485
Basic information Name: Northwest Africa 12485
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12485
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 49 g
Classification
  history:
Recommended:  Eucrite-melt breccia    [explanation]

This is 1 of 25 approved meteorites classified as Eucrite-melt breccia.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 4 Mar 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12485 (NWA 12485)

(Northwest Africa)

Find: 2018 Oct

Classification: HED achondrite (Eucrite, melt breccia)

History: Bought by Jean Redelsperger from Mohamed Elguirah in Guelmin in October 2018.

Physical characteristics: Gray stones, some crusted, with brecciated gray interior.

Petrography: Melt breccia with lithic clasts made of low-Ca pyroxene and minor chromite set in a feldspathic melt rock containing small Ca-Px crystals. The melt rock contain sulfide droplets.

Geochemistry: Low-Ca pyroxene clasts Fs36.6±1.2Wo5.7±2.4, FeO/MnO 29.4±2.5 (n=4). Feldspathic melt rock An91.1Ab8.7Or0.3 (n=2). Chromite Cr#=0.81.

Classification: Eucrite-melt breccia.

Specimens: Type specimen at CEREGE. Main mass with Jean Redelpserger.

Data from:
  MB108
  Table 0
  Line 0:
Date:2018 Oct
Mass (g):49.0
Pieces:3
Class:Eucrite-melt breccia
Weathering grade:low
Ferrosilite (mol%):36.6±1.2 (n=4)
Wollastonite (mol%):5.7±2.4
Magnetic suscept.:2.76
Classifier:J. Gattacceca, L. Krämer Ruggiu, CEREGE
Type spec mass (g):10.3
Type spec location:CEREGE
Main mass:Jean Redelsperger
Comments:work name JR059; submitted by JérômeGattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
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 6900 approved meteorites from (Northwest Africa) (plus 2035 unapproved names)

Direct link to this page