header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 18 Aug 2019
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:
Limit to approved meteorite names
Search text:  
Northwest Africa 2821
Basic information Name: Northwest Africa 2821
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 2821
Observed fall: No
Year found: 2003
Country: Morocco
Mass:help 384 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  R3.8
MetBase:  v. 7.1  (2006)  R3.8
Recommended:  R3.8    [explanation]

This is 1 of 9 approved meteorites classified as R3.8.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)
Writeuphelp
Writeup from MB 89:
Northwest Africa 2821

Morocco

Found 2003

Rumuruti chondrite (R3.8)

A single stone of 384 g was purchased from Moroccan mineral and fossil dealers in 2003. It was probably found in the Zagora region of Morocco.  Mineralogy and classification (J. Schlüter, Hamburg): The sample is brecciated; olivine fragments in matrix Fa39.25-0.63 (range Fa38.5-40.6, n=11), olivine in chondrules Fa37.52-5.85 (range Fa17.3-40.7, n=22), NiO in olivine, average 0.16 wt.%; orthopyroxene Fs13.79G8.52 (range Fs6.55-30.1, n=6); clinopyroxene (mean Fs10.95,En45.36,Wo43.68, n=3). Chromium spinel (mean, n=2: FeO 40.51, MgO 0.97, MnO 0.34, Al2O3 5.05, Cr2O3 44.15, TiO2 5.81). Chondrule size (n=35, 405 μm).  Weathering grade: W3, shock stage: S2. Specimens: type specimen, 21.8 g, Mineralogical Museum Hamburg, the main mass is with I. Herkstroeter, Hamburg.

Institutions
   and collections
Herkstroeter: Ingo Herkstroeter, Hamburg, Germany (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1386 approved meteorites from Morocco (plus 16 unapproved names) (plus 1 impact crater)

Direct link to this page