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Reggane 005
Basic information Name: Reggane 005
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2023
Country: Algeria
Mass:help 8.12 kg
Classification
  history:
Meteoritical Bulletin:  MB 112  (2023)  CK5
Recommended:  CK5    [explanation]

This is 1 of 214 approved meteorites classified as CK5.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 7 May 2023
Writeuphelp
Writeup from MB 112:

Reggane 005        26°38’44.41"N, 01°02’52.53"E

Tamanghasset, Algeria

Find: 2022 Dec 28

Classification: Carbonaceous chondrite (CK5)

History: The meteorite was found on December 28, 2022 in Algeria and donated to the main mass holder by Mr. J. Z. Sidi, Spain.

Physical characteristics: Seven fragments largely covered with fusion crust.

Petrography: The meteorite displays a dark grayish interior and consists of sparse, well separated chondrules (apparent mean diameter about 800 µm) set in abundant recrystallized matrix dominated by ferroan Ni-bearing olivine. Minor phases are low-Ca pyroxene, Ca-pyroxene, intermediate plagioclase, pentlandite, and FeS. Cr-rich magnetite is abundant; no metal detected.

Geochemistry: olivine: Fa31.0±0.2 (Fa30.7-31.3, FeO/MnO=112±9; NiO=0.55±0.07 wt%, n=10); low-Ca pyroxene: Fs27.2±0.2Wo0.7±0.1 (Fs26.9-27.6Wo0.5-0.8, n=7); diopside: Fs9.2±0.2Wo45.5±0.2 (Fs8.7-9.5Wo45.2-45.7, n=7); feldspar: An21.3-31.5Ab65.4-71.8Or3.2-7.1, n=7; magnetite contains 4.68±0.20 wt% Cr2O3, n=4

Data from:
  MB112
  Table 0
  Line 0:
State/Prov/County:Tamanghasset
Place of purchase:Spain
Date:2022 Dec 28
Latitude:26°38'44.41"N
Longitude:01°02'52.53"E
Mass (g):8124
Pieces:7
Class:CK5
Shock stage:S2
Weathering grade:low
Fayalite (mol%):31.0
Ferrosilite (mol%):27.2
Wollastonite (mol%):0.7
Classifier:A. Greshake, MNB
Type spec mass (g):27
Type spec location:MNB
Main mass:Michel Haak
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
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Geography:

Algeria
Coordinates:
     Recommended::   (26° 38' 44"N, 1° 2' 53"E)

Statistics:
     This is 1 of 426 approved meteorites from Tamanghasset, Algeria (plus 2 unapproved names) (plus 2 impact craters)
     This is 1 of 1335 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)
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