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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:
Recommended:  R3-5    [explanation]

This is 1 of 22 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 Meteoritical Bulletin, no. 111, in preparation (2022)
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Geography:

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

Statistics:
     This is 1 of 177 approved meteorites from Adrar, Algeria (plus 1 unapproved name)
     This is 1 of 1208 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)
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