header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 14 Oct 2020
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Include past classifications in search
Limit to approved meteorite names
Search text:  
Northwest Africa 8755
Basic information Name: Northwest Africa 8755
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8755
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 37.7 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Eucrite-br
Recommended:  Eucrite-br    [explanation]

This is 1 of 179 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 13 Feb 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 8755 (NWA 8755)

(Northwest Africa)

Purchased: Oct 2014

Classification: HED achondrite (Eucrite, brecciated)

History: The meteorite was bought 2014 on a mineral fair in Munich, Germany.

Physical characteristics: The small individual is partly covered with fusion crust.

Petrography: The meteorite is a eucritic breccia composed of coarse- and fine-grained basaltic and impact melt clast set into more fine-grained matrix. Dominant minerals in basaltic clasts and matrix are exsolved pyroxene and calcic plagioclase. Minor phases include chromite and silica polymorphs.

Geochemistry: low-Ca pyroxene: Fs67.9±0.4Wo2.2±0.4 (Fs67-68.6Wo1.8-3.3, n=26, FeO/MnO=32-37); Ca-pyroxene: Fs34.3±2.1Wo40.6±2.1 (Fs30.3-40.5Wo34.8-44.2, n=28, FeO/MnO=32-39); calcic plagioclase: An87.4±4.7 (An78.4-92.1, n=15)

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Munich, Germany
Date:P Oct 2014
Mass (g):37.7
Pieces:1
Class:Eucrite-br
Shock stage:moderate
Weathering grade:low
Ferrosilite (mol%):67.9; 34.3
Wollastonite (mol%):2.2; 40.6
Classifier:A. Greshake, MNB
Type spec mass (g):8.6
Type spec location:MNB
Main mass:Jürgen Nauber, JNMC
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
JNMC: jnmczurich, P.O. Box 208, CH-8155 Niederhasli, Switzerland; Website (private address; updated 4 Feb 2014)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7385 approved meteorites from (Northwest Africa) (plus 1955 unapproved names)

Direct link to this page