header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 15 Dec 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:  
Chwichiya 004
Basic information Name: Chwichiya 004
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2019
Country: Western Sahara
Mass:help 134 g
Classification
  history:
Recommended:  LL7    [explanation]

This is 1 of 63 approved meteorites classified as LL7.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 29 Nov 2019
Writeuphelp
Writeup from MB 108:

Chwichiya 004        27°23’42.89"N, 11°42’12.82"W

Saguia el Hamra, Western Sahara

Find: 2019 Apr 24

Classification: Ordinary chondrite (LL7)

History: Found by Hammo Oualguirah on April 24, 2019. Bought from Mohamed Elguirah by Jean Redelsperger.

Physical characteristics: Several greyish stones, without fusion crust.

Petrography: (J. Gattacceca, CEREGE) Recrystallized chondrite. No relict chondrules observed. Olivine (to 200 µm) has lobate contours. Plagioclase typical size 100 µm.

Geochemistry: Olivine Fa30.0 (n=2). Low-Ca pyroxene Fs24.8±0.0Wo3.2±0.2 (n=3).

Classification: Ordinary chondrite (LL7). Type 7 based on texture and Wo content of low-Ca pyroxene.

Specimens: Type specimen at CEREGE. Main mass with Jean Redelsperger.

Data from:
  MB108
  Table 0
  Line 0:
State/Prov/County:Saguia el Hamra
Date:2019 Apr 24
Latitude:27°23'42.89"N
Longitude:11°42'12.82"W
Mass (g):134
Pieces:several
Class:LL7
Fayalite (mol%):30.0 (n=2)
Ferrosilite (mol%):24.8±0.0 (n=3)
Wollastonite (mol%):3.2±0.2
Magnetic suscept.:3.80
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):20.6
Type spec location:CEREGE
Main mass:Jean Redelsperger
Finder:Hammo oualguirah
Comments:work name JR072; submitted by Jérôme Gattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Western Sahara
Coordinates:
     Recommended::   (27° 23' 43"N, 11° 42' 13"W)

Statistics:
     This is 1 of 87 approved meteorites from Saguia el Hamra, Western Sahara (plus 1 unapproved name)
     This is 1 of 210 approved meteorites from Western Sahara (plus 20 unapproved names)
Proximity search:
Find nearby meteorites: enter search radius (km):

Direct link to this page