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Northwest Africa 11753
Basic information Name: Northwest Africa 11753
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11753
Observed fall: No
Year found: 2017
Country: Morocco
Mass:help 159 g
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 358 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 26 May 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11753 (NWA 11753)

Morocco

Purchased: 2017 Jul

Classification: HED achondrite (Eucrite, polymict)

Petrography: (K. Metzler, IfP) Fine-grained polymict breccia consisting of mm-sized basalt clasts (subophitic and granulitic textures) and mineral fragments set in a fine-grained clastic matrix made of related debris. Breccia-in breccia textures occur. Most pyroxenes exhibit augite exsolution lamellae. Fragments of diogenitic low-Ca pyroxene are admixed (<10 vol%). Accessories are silica polymorph, ilmenite, chromite, troilite, and Cr-Al-spinel.

Geochemistry: Mineral compositions and geochemistry: Eucritic low-Ca pyroxene (host; n=9): Fs47.8±5.8 (39-58); Wo2.1±0.6 (1-3); mean Fe/Mn (at.): 33. Eucritic Ca-pyroxene (exsolution lamellae; n=3) Fs20.2±4.2 (18-25); Wo42.2±1.9 (40-44). Diogenitic pyroxene (n=4): Fs29.5±1.9Wo3.7±0.5 (Fs28-31Wo3-4); mean Fe/Mn (at.): 36.Plagioclase (n=10): An90.6±2.6 (85-94).

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Guelmim, Morocco
Date:P 2017 Jul
Mass (g):159
Pieces:1
Class:Eucrite-pmict
Shock stage:moderate
Weathering grade:low
Ferrosilite (mol%):47.8; 20.2; 29.5
Wollastonite (mol%):2.1; 42.2; 3.7
Classifier:K. Metzler, IfP
Type spec mass (g):20
Type spec location:IfP, Münster
Main mass:Nourddine Azelmat, Morocco
Comments:Submitted by K. Metzler, IfP
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1680 approved meteorites from Morocco (plus 25 unapproved names) (plus 1 impact crater)

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