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Hassi Rtiem 001
Basic information Name: Hassi Rtiem 001
     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 235 g
Classification
  history:
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 272 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 29 May 2021
Writeuphelp
Writeup from MB 110:

Hassi Rtiem 001        27°53’56.7’’N, 9°23’14.9’’W

South, Morocco

Purchased: 2021 Jan

Classification: HED achondrite (Eucrite, monomict)

History: Purchased from a moroccan mineral dealer. Found in Morocco in October 2019.

Petrography: (K. Metzler, IfP) Achondritic breccia, consisting of mm-sized eucritic lithic clasts with ophitic to subophitic textures and monomineralic fragments (pyroxene, plagioclase) set in a fine-grained clastic matrix of related debris. Low-Ca pyroxene shows augite exsolution lamellae. Accessories are a silica polymorph, ilmenite, chromite, troilite, and some Ni-free metal.

Geochemistry: Mineral compositions and geochemistry: Low-Ca pyroxene (host): Fs52.9±0.9 Wo2.5±0.3 (Fs51.2-54.0 Wo2.0-2.8); mean Fe/Mn (at.): 33; n=15. Ca-rich pyroxene (exsolution lamellae) Fs23.7±1.0 Wo42.1±0.8 (Fs22.2-25.2 Wo41.0-43.2); mean Fe/Mn (at.): 33; n=10. Plagioclase An85.2±4.8 Or0.0±1.7 (An78.3-91.1 Or0.0-1.7); n=13.

Classification: Monomict eucrite, based on texture, mineralogical composition, and mineral chemistry.

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:South
Place of purchase:Morocco
Date:P 2021 Jan
Latitude:27°53'56.7''N
Longitude:9°23'14.9''W
Mass (g):235
Pieces:1
Class:Eucrite-mmict
Shock stage:M-S1
Weathering grade:Low
Ferrosilite (mol%):52.9±0.9; 23.7±1.0
Wollastonite (mol%):2.5±0.3; 42.1±0.8
Classifier:K. Metzler, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:Meteorite Museum & Shop, Stephan Decker, Oberwesel, Germany
Comments:Submitted by K. Metzler, IfP
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
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:

Morocco
Coordinates:
     Recommended::   (27° 53' 57"N, 9° 23' 15"W)

Statistics:
     This is 1 of 32 approved meteorites from South, Morocco
     This is 1 of 1929 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)
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