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Chwichiya 008
Basic information Name: Chwichiya 008
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2020
Country: Western Sahara
Mass:help 97.5 g
Classification
  history:
Recommended:  Eucrite    [explanation]

This is 1 of 554 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 22 Dec 2021
Writeuphelp
Writeup from MB 110:

Chwichiya 008        27°23’12"N, 11°45’29"W

Saguia el Hamra, Western Sahara

Purchased: 2020 Jan

Classification: HED achondrite (Eucrite)

Petrography: (J. Gattacceca, CEREGE) Igneous rock with intersertal texture. Main minerals are pyroxene and plagioclase with typical grain size 400 µm. Other minerals include chromite, ilmenite, metal, troilite.

Geochemistry: Low-Ca pyroxene Fs59.3±0.6Wo2.7±0.4, FeO/MnO 30.2±2.0 (n=4). Augite exsolutions Fs26.6Wo43.3, FeO/MnO 30.3 (n=2). Plagioclase An89.2±0.3Ab10.5±0.4Or0.3±0.1 (n=4). Chromite Cr# 0.82.

Classification: Achondrite (eucrite)

Specimens: Type specimen at CEREGE, main mass with José Garcia

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:Saguia el Hamra
Date:P 2020 Jan
Latitude:27°23'12"N
Longitude:11°45'29"W
Mass (g):97.5
Pieces:68
Class:Eucrite
Weathering grade:moderate
Ferrosilite (mol%):59.3±0.6 (n=4)
Wollastonite (mol%):2.7±0.4
Magnetic suscept.:3.46
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):20
Type spec location:CEREGE
Main mass:José Garcia
Finder:anonymous
Comments:work name CM88; 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. 110, in preparation (2021)
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Geography:

Western Sahara
Coordinates:
     Recommended::   (27° 23' 12"N, 11° 45' 29"W)

Statistics:
     This is 1 of 102 approved meteorites from Saguia el Hamra, Western Sahara
     This is 1 of 251 approved meteorites from Western Sahara (plus 20 unapproved names)
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