BIR OUNANE 004 Achondrite-ung - 366 g - (1)
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Bir Ounane 004 is an Acondrita-ung non-grouped primitive chondrite meteorite from Gao, Mali, weighing 366 g.
AI-assisted summary
Description from the seller
Bir Ounane 004 is an OFFICIAL name for a meteorite.
Abbreviation: There is no official abbreviation for this meteorite.
Fall observed: No
Year of discovery: 2023
Country: Mali
Mass: 12.16 kg
Classification history:
Meteoritic Bulletin, MB 112 (2024): Ungrouped Carbonaceous Chondrite
Recommended: Ungrouped carbonaceous chondrite [explanation]
This is 1 of the 177 meteorites officially classified as Ungrouped Carbonaceous Chondrite. [show all]
Search others: Ungrouped carbonaceous chondrites, Ungrouped chondrites
Comments:
Approved on January 3, 2024
Draft
MB 112 Report:
Bir Ounane 004 21°51.8568'N, 3°16.7766'W
Gao, Mali
Search: 2023
Classification: Ungrouped carbonaceous chondrite
History: Numerous samples were found totaling 12.158 kg in Mali, 3.5 km northwest of the Bir Ounane001 site. Salek Mrabih and Sidi al Arbi host the main masses.
Physical characteristics: The rock has an irregular, flattened shape and lacks a fusion crust. The cut surface is dark orange-brown and has a poikilitic texture.
Petrography: Description and classification (A. Love, App) The specimen shows a poikilitic texture composed of: 0.5 mm to 1 cm sized clinoenstatite, olivine, pyroxene, shocked plagioclase, metal FeNi and troilite. Olivine, pyroxene and plagioclase appear as interstitial phases and as chadacrysts. Olivine also occurs in aggregates of equigranular interstitial grains near the oikocrystals of clinoenstatite. Additional minerals are: troilite, schreibersite and daubreelite.
Geochemistry: (A. Love, App) Olivine (Fa 1.0±0.1, Fe/Mn=4.1±0.8, n=12); low-Ca pyroxene (Fs 1.3±0.1 Wo 0.9±0.4, Fe/Mn=2.7±0.8, n=12); high-Ca pyroxene (Fs 0.8±0.3 Wo 40.3±1.0, Fe/Mn=2.3±0.8, n=8); plagioclase (An 36.9±8.1 Or 0.2 _0.1, n=6).
Classification: primitive ungrouped carbonaceous chondrite. Based on petrographic features, reduced mineral compositions, and find coordinates, this sample is possibly paired with ungrouped carbonaceous chondrites Bir Ounane 001 and 003.
Specimens: Salek Mrabih (Dominion Meteors) holds the main masses. A polished thin section and a final cut weighing 21.4 g are deposited in
Bir Ounane 004 is an OFFICIAL name for a meteorite.
Abbreviation: There is no official abbreviation for this meteorite.
Fall observed: No
Year of discovery: 2023
Country: Mali
Mass: 12.16 kg
Classification history:
Meteoritic Bulletin, MB 112 (2024): Ungrouped Carbonaceous Chondrite
Recommended: Ungrouped carbonaceous chondrite [explanation]
This is 1 of the 177 meteorites officially classified as Ungrouped Carbonaceous Chondrite. [show all]
Search others: Ungrouped carbonaceous chondrites, Ungrouped chondrites
Comments:
Approved on January 3, 2024
Draft
MB 112 Report:
Bir Ounane 004 21°51.8568'N, 3°16.7766'W
Gao, Mali
Search: 2023
Classification: Ungrouped carbonaceous chondrite
History: Numerous samples were found totaling 12.158 kg in Mali, 3.5 km northwest of the Bir Ounane001 site. Salek Mrabih and Sidi al Arbi host the main masses.
Physical characteristics: The rock has an irregular, flattened shape and lacks a fusion crust. The cut surface is dark orange-brown and has a poikilitic texture.
Petrography: Description and classification (A. Love, App) The specimen shows a poikilitic texture composed of: 0.5 mm to 1 cm sized clinoenstatite, olivine, pyroxene, shocked plagioclase, metal FeNi and troilite. Olivine, pyroxene and plagioclase appear as interstitial phases and as chadacrysts. Olivine also occurs in aggregates of equigranular interstitial grains near the oikocrystals of clinoenstatite. Additional minerals are: troilite, schreibersite and daubreelite.
Geochemistry: (A. Love, App) Olivine (Fa 1.0±0.1, Fe/Mn=4.1±0.8, n=12); low-Ca pyroxene (Fs 1.3±0.1 Wo 0.9±0.4, Fe/Mn=2.7±0.8, n=12); high-Ca pyroxene (Fs 0.8±0.3 Wo 40.3±1.0, Fe/Mn=2.3±0.8, n=8); plagioclase (An 36.9±8.1 Or 0.2 _0.1, n=6).
Classification: primitive ungrouped carbonaceous chondrite. Based on petrographic features, reduced mineral compositions, and find coordinates, this sample is possibly paired with ungrouped carbonaceous chondrites Bir Ounane 001 and 003.
Specimens: Salek Mrabih (Dominion Meteors) holds the main masses. A polished thin section and a final cut weighing 21.4 g are deposited in
Details
Number of objects
1
Name of meteorite
BIR OUNANE 004
Type of meteorite
Achondrite-ung
Weight
366 g
Origin (region/city)
Gao
Country of origin
Mali
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