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Northwest Africa 7705
Basic information Name: Northwest Africa 7705
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7705
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 124 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 337 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 1 Mar 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7705 (NWA 7705)

(Northwest Africa)

Found: 2012

Classification: HED achondrite (Eucrite, polymict)

Petrography: Fresh, partly fusion crust covered meteorite displaying a dark-grayish interior with easily discernable lithic clasts. Lithic clasts include basaltic and melt lithologies; mineral fragments are dominantly large exsolved pyroxenes and clacic plagioclase. SiO2, chromite, troilte and rare FeNi metal are minor constituents.

Geochemistry: Opx: Fs55.8-58Ws1.6-3.5, FeO/MnO=31-35; cpx: Fs23.3-26.1Wo44-44.6, FeO/MnO=29-35; calcic plagioclase: An86.8 (range An80.7-90).

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Nouadhibou, Mauretania
Date:2012
Mass (g):124
Pieces:2
Class:Eucrite-pmict
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):55.8-58; 23.3-26.1
Wollastonite (mol%):1.6-3.5; 44-44.6
Classifier:A. Greshake, MNB
Type spec mass (g):20.0
Type spec location:MNB
Main mass:Svend Buhl
Finder:Salek Abeidi
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstrasse 43, D-10115 Berlin, Germany (institutional address)
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 6559 approved meteorites from (Northwest Africa) (plus 2021 unapproved names)

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