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Northwest Africa 7825
Basic information Name: Northwest Africa 7825
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7825
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 20.2 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 481 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 6 May 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7825 (NWA 7825)

(Northwest Africa)

Purchased: 2012 Aug 19

Classification: HED achondrite (Diogenite)

Physical characteristics: A single stone partially covered with fusion crust. The interior is greenish.

Petrography: (J. Gattacceca, CEREGE) Coarse-grained orthopyroxenite composed of >99% orthopyroxene (up to 2 mm, mean 400 μm). Minor chromite, silica, troilite, kamacite. Olivine was not observed.

Geochemistry: Orthopyroxene Fs25.1±0.4.2Wo2.1±0.3 (FeO/MnO=30.6). Chromite Cr/(Cr+Al)=0.90. Magnetic susceptibility log χ = 3.52.

Classification: HED achondrite (Diogenite)

Specimens: 4.1 g and a polished section at CEREGE. Main mass with P. Thomas

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Rich, Morocco
Date:P 2012 Aug 19
Mass (g):20.15
Pieces:1
Class:Diogenite
Ferrosilite (mol%):25.1±0.4
Wollastonite (mol%):2.1±0.3
Magnetic suscept.:3.52
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):4.1
Type spec location:CEREGE
Main mass:P. Thomas
Comments:Submitted by J. Gattacceca
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. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8037 approved meteorites from (Northwest Africa) (plus 1947 unapproved names)

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