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Errachidia 008
Basic information Name: Errachidia 008
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2021
Country: Morocco
Mass:help 2 kg
Classification
  history:
Recommended:  H4    [explanation]

This is 1 of 6371 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 6 Aug 2022
Writeuphelp
Writeup from MB 111:

Errachidia 008        31°38.9624’N, 4°49.9337’W

Centre-South, Morocco

Find: Dec 2021

Classification: Ordinary chondrite (H4)

History: Cascadia received 37.6 g of material from Mustapha Oulkouch, who found the meteorite in December 2021.

Physical characteristics: Physical Characteristics: The cut face shows numerous light-colored chondrules set amidst a medium-brown background that is crosscut by numerous fine darker brown veins.

Petrography: (M. Hutson, A. Ruzicka, Cascadia): In thin section, there is 80-90% replacement of metal and sulfide, with weathering surrounding chondrules and fragments. Chondrule mesostases are devitrified with numerous small crystallites set in feldspathic material. BSE imaging shows that the interchondrule material is comprised of small (mostly < 20µm) angular mineral shards mixed with a variety of weathering products, including calcite.

Geochemistry: Olivine: Fa18.6±1.3, N=19; low-Ca pyroxene: Fs14.5±3.6Wo1.1±0.3, N=18.

Classification: Ordinary chondrite (H4) based on chemistry and texture.

Specimens: Cascadia holds 35.6 g in five pieces, as well as a polished thin section and material in an epoxy butt; Mustapha Oulkouch holds the main mass.

Data from:
  MB111
  Table 0
  Line 0:
State/Prov/County:Centre-South
Date:Dec 2021
Latitude:31°38.9624'N
Longitude:4°49.9337'W
Mass (g):2000
Pieces:1
Class:H4
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):18.6±1.3, N=19
Ferrosilite (mol%):14.5±3.6, N=18
Wollastonite (mol%):1.1±0.3, N=18
Classifier:M. Hutson and A. Ruzicka, Cascadia
Type spec mass (g):35.6
Type spec location:Cascadia
Main mass:Mustapha Oulkouch
Finder:Mustapha Oulkouch
Comments:Lab number CML 1481; submitted by Melinda Hutson
Institutions
   and collections
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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Geography:

Morocco
Coordinates:
     Recommended::   (31° 38' 58"N, 4° 49' 56"W)

Statistics:
     This is 1 of 21 approved meteorites from Centre-South, Morocco (plus 1 impact crater)
     This is 1 of 1887 approved meteorites from Morocco (plus 26 unapproved names) (plus 1 impact crater)
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