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Boura 002
Basic information Name: Boura 002
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2022
Country: Algeria
Mass:help 1958 g
Classification
  history:
Meteoritical Bulletin:  MB 112  (2023)  Mesosiderite
Recommended:  Mesosiderite    [explanation]

This is 1 of 274 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Comments: Approved 15 Jul 2023
Writeuphelp
Writeup from MB 112:

Boura 002        26°46’54"N, 0°59’21"W

Adrar, Algeria

Find: 2021 Nov

Classification: Mesosiderite

Petrography: (K. Metzler, IfP) Metal-rich achondritic breccia, consisting of mineral fragments (mainly pyroxene and plagioclase) up to several mm, set in a finer grained recrystallized matrix. Many pyroxene grains show thin exsolution lamellae. Modal amount of plagioclase >10 vol%. Severe metal oxidation with crisscrossed oxide veins throughout the sample. Accessories are a silica polymorph and troilite. Metal and associated weathering products make up ~30 vol% of the meteorite.

Geochemistry: Mineral compositions and geochemistry: Low-Ca pyroxene (host): Fs33.1±4.5 Wo3.4±0.7 (Fs23.4-40.5Wo2.2-4.3); mean Fe/Mn (at.): 25; n=15. Ca-rich pyroxene (exsolution lamellae): Fs32.0±1.2Wo38.4±0.2 (Fs30.8-33.3Wo38.2-38.6); mean Fe/Mn (at.): 23; n=3. Plagioclase: An92.8±3.1Or0.1±0.1 (An86.5-96.7Or0.0-0.3); n=13.

Classification: Mesosiderite, based on texture, modal composition and mineral chemistry.

Data from:
  MB112
  Table 0
  Line 0:
State/Prov/County:Adrar
Place of purchase:Tindouf, Algeria
Date:2021 Nov
Latitude:26°46'54"N
Longitude:0°59'21"W
Mass (g):1958
Pieces:Several
Class:Mesosiderite
Shock stage:M-S1
Weathering grade:high
Ferrosilite (mol%):33.1±4.5; 32.0±1.2
Wollastonite (mol%):3.4±0.7; 38.4±0.2
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. 112, in preparation (2023)
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Photos:
CreditPhotos
Public domain photographs:
Knut Metzler   
Geography:

Algeria
Coordinates:
     Recommended::   (26° 46' 54"N, 0° 59' 21"W)

Statistics:
     This is 1 of 201 approved meteorites from Adrar, Algeria (plus 1 unapproved name)
     This is 1 of 1362 approved meteorites from Algeria (plus 31 unapproved names) (plus 4 impact craters)
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