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Northwest Africa 12701
Basic information Name: Northwest Africa 12701
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12701
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 305 g
Classification
  history:
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 218 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 18 Aug 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12701 (NWA 12701)

(Northwest Africa)

Purchased: 2019

Classification: HED achondrite (Eucrite, monomict)

History: The meteorite was purchased from a local meteorite dealer in Zagora, Morocco.

Physical characteristics: Single stone lacking any fusion crust.

Petrography: The meteorite is a breccia with up tp 7 mm sized basaltic and black melt clasts set into a clastic mineral matrix. Dominant minerals are exsolved pyroxene and calcic plagioclase of highly variable grain sizes between 30 μm and 1 mm. Minor phases include silica, chromite, FeS, ilmenite, and metallic Fe.

Geochemistry: pyroxene host to augite lamellae: Fs66.1.0±1.9Wo3.3±0.6 (Fs60.4-67.5Wo3.0-4.7, n=12, FeO/MnO=31-34); Ca-pyroxene: Fs27.1±1.1Wo41.1±0.6 (Fs25.3-28.7Wo40.0-42.5, n=9, FeO/MnO=29-32); diogenitic pyroxene: Fs31.4±3.5Wo3.2±0.4 (Fs28.8-38.1Wo2.4-4.0, n=12, FeO/MnO=27-33); calcic plagioclase: An92.1±0.9 (An90.4-93.6, n=13)

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Guelmim, Morocco
Date:P 2019
Mass (g):304.7
Pieces:1
Class:Eucrite-mmict
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):66.1; 27.1; 31.4
Wollastonite (mol%):3.3; 41.1; 3.2
Classifier:A. Greshake, MNB
Type spec mass (g):28.7
Type spec location:MNB
Main mass:Fabien Kuntz
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstrasse 43, D-10115 Berlin, Germany (institutional address)
Kuntz: Fabien Kuntz, France; 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 6900 approved meteorites from (Northwest Africa) (plus 2035 unapproved names)

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