NWA 11546 - Highly Unequilibrated CV3 - Olivine Fa3.6±4.0 means PMD 106%

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NWA 11546

 

 

DhoNWA 11546

Found 2017

Carbonaceous Chondrite

 CV3 - Oxidized Subgroup

Specimen is a 4.78g endcut



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Olivine Fa3.6±4.0, range 0.7-11.2, includes a PMD (or Percent Mean Deviation) of 106%, reflection a very unequilibrated, heterogeneous, and primitive material.

 

   

From the Meteoritical society Database :

Northwest Africa 11546
Basic information Name: Northwest Africa 11546
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11546 
Observed fall: No
Year found: 2017
Country: (Northwest Africa) 
Mass: 343 g
Classification
  history:
Meteoritical Bulletin:   MB 106   (2018)   CV3
Recommended:   CV3    
Comments: Approved 26 Dec 2017
Writeup
Writeup from MB 106: 

Northwest Africa 11546 (NWA 11546)

(Northwest Africa)

Purchased: 2017

Classification: Carbonaceous chondrite (CV3)

Physical characteristics: Dark irregular fragments.

Petrography: (J. Gattacceca, H. Pourkhorsandi, CEREGE) Well-defined chondrules (mostly type I, average apparent diameter 860 μm, N=18) and CAIs (to 2 mm) set in a fine-grained iron-rich abundant textured matrix. Opaque minerals are mostly sulfides and magnetite.

Geochemistry: Olivine Fa3.6±4.0, range 0.7-11.2, PMD 106% (N=6). Orthopyroxene Fs1.4±0.6Wo4.0±1.0 (N=3).

Classification: Carbonaceous chondrite (CV3). Oxidized subgroup.

Specimens: Type specimen at CEREGE. Main mass with Kuntz.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase: Erfoud
Date: P 2017
Mass (g): 343.1
Pieces: many
Class: CV3
Weathering grade: low
Magnetic suscept.: 4.41
Classifier: J. Gattacceca, H. Pourkhorsandi, CEREGE
Type spec mass (g): 22.43
Type spec location: CEREGE
Main mass: Kuntz
Comments: work name K356; submitted by Jérôme 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)
Kuntz: Fabien Kuntz, France; Website (private address)

 

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