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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 576 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 Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography:

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

Statistics:
     This is 1 of 106 approved meteorites from Saguia el Hamra, Western Sahara (plus 1 unapproved name)
     This is 1 of 265 approved meteorites from Western Sahara (plus 20 unapproved names)
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