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Tanezrouft 092
Basic information Name: Tanezrouft 092
     This is an OFFICIAL meteorite name.
Abbreviation: Tnz 092
Observed fall: No
Year found: 2022
Country: Algeria
Mass:help 1498 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  R3-5
Recommended:  R3-5    [explanation]

This is 1 of 26 approved meteorites classified as R3-5.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)
Comments: Approved 20 Jun 2022
Writeuphelp
Writeup from MB 111:

Tanezrouft 092 (Tnz 092)        24°57’43.6"N, 1°02’42.7"E

Adrar, Algeria

Purchased: 2022 March 31

Classification: Rumuruti chondrite (R3-5)

History: Found in Algeria on January 9, 2022

Petrography: (K. Metzler, IfP) Chondritic breccia, consisting of dark host material (clastic matrix) and lighter chondritic clasts with sizes up to 5 mm. The clastic matrix represents a mixture of unequilibrated and equilibrated chondrules and related debris. The investigated light clast represents type 5 material (equilibrated olivine and pyroxene) with clearly visible chondrules. Accessories are troilite, pentlandite, and Cr-Al-spinel; no metal was found.

Geochemistry: Mineral compositions and geochemistry: Clastic matrix: Mean olivine composition: Fa25.4±15.1 (1.4-42.1); n=11; mean low-Ca pyroxene composition Fs11.5±6.0Wo0.6±0.7 (Fs3.0-18.4Wo0.0-2.2); n=9. Chondritic clast of petrologic type 5: mean olivine composition Fa38.7±0.7 (Fa38.3-39.0); n=9; mean composition of low-Ca pyroxene: Fs29.9±0.4Wo1.3±0.3 (Fs29.1-30.4Wo1.0-1.7); n=8.

Classification: R chondrite based on mineral chemistry. Genomict breccia, consisting of clasts of petrologic type 5, embedded in a clastic matrix containing type 3 material.

Data from:
  MB111
  Table 0
  Line 0:
State/Prov/County:Adrar
Place of purchase:Morocco
Date:P 2022 March 31
Latitude:24°57'43.6"N
Longitude:1°02'42.7"E
Mass (g):1498
Pieces:Several
Class:R3-5
Shock stage:C-S3
Weathering grade:Low
Fayalite (mol%):25.4±15.1; 38.7±0.7
Ferrosilite (mol%):11.5±6.0; 29.9±0.4
Wollastonite (mol%):0.6±0.7; 1.3±0.3
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. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Geography:

Algeria
Coordinates:
     Recommended::   (24° 57' 44"N, 1° 2' 43"E)

Statistics:
     This is 1 of 200 approved meteorites from Adrar, Algeria (plus 1 unapproved name)
     This is 1 of 1344 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)
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