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Northwest Africa 13705
Basic information Name: Northwest Africa 13705
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13705
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 235 g
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 522 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 20 Mar 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13705 (NWA 13705)

(Northwest Africa)

Find: 2020

Classification: HED achondrite (Diogenite)

Physical characteristics: Partially covered by fusion crust. Cut face reveals a fine-grained grey interior.

Petrography: (J. Gattacceca, CEREGE) Fractures but unbrecciated granular igneous rock with typical grain size 400 μm. Main mineral is pyroxene. Accessory plagioclase and silica polymorph. Metal and troilite to 100 μm, and also as aligned μm-sized grains within silicates. Ilmenite to 300 μm.

Geochemistry: Low-Ca pyroxene Fs29.4±0.6Wo5.8±2.0, FeO/MnO = 30.2±4.0. Plagioclase An88.9Ab10.5Or0.6 (n=2).

Classification: Achondrite (diogenite, unbrecciated)

Specimens: Type specimen at CEREGE. Main mass with Isabelle Pothier.

Data from:
  MB110
  Table 0
  Line 0:
Date:2020
Mass (g):235
Pieces:1
Class:Diogenite
Weathering grade:moderate
Ferrosilite (mol%):29.4±0.6 (n=5)
Wollastonite (mol%):5.8±2.0
Magnetic suscept.:3.53
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):24.8
Type spec location:CEREGE
Main mass:Isabelle Pothier
Finder:anonymous
Comments:work name CM62; 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 10 Jun 2023)
Catalogs:
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
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Revision
  history:
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