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| Gadamis 003 | |||||||||||||||||||||||||||||||||||
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| Basic information | Name: Gadamis 003 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2021 Country: Libya Mass:  1270 g | ||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 82 approved meteorites classified as Lunar (anorth). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||||||
| Comments: | Approved 15 Dec 2021 | ||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 110:
Gadamis 003 30.284°N, 11.005°E Ghadamis, Libya Find: 2021 Classification: Lunar meteorite (anorth) History: This meteorite was reportedly found in Libya at the same location as Gadamis 002 in 2021, purchased by Abdelhadi Aithiba in 2021. Physical characteristics: Two identically appearing stones (670 and 600 g) found together at the Gadamis 002 site. The stones have a light green sand-blasted exterior, patches of smoothed dark fusion crust, as well as some light tan desert weathering. Polished sawcut surfaces reveal a brecciated, very fine-grained light gray interior with a few scattered white grains. Petrography: (A. Ross and C. Agee, UNM) Microprobe analysis reveals a significantly brecciated, cataclastic anorthitic plagioclase host making up 98-99% of this meteorite. Poikilitically enclosed in the plagioclase are sparse, very small olivine and pyroxene blebs (most in the range 5-10 μm). Larger pyroxene grains are scarce with two larger grains in size range of 300 μm observed in the microprobe mount. Together, olivine and pyroxene make up a total of ~1-2% of this meteorite. Geochemistry: (A. Ross, UNM) Plagioclase An96.1±0.4Ab3.8±0.4Or0.2±0.1, n=6; olivine Fa39.1±0.8, Fe/Mn=105±5, n=6; pigeonite Fs32.9±4.9Wo6.1±2.5, Fe/Mn=59±4, n=5. Classification: Lunar ferroan anorthosite, cataclastic. Olivine, pigeonite and plagioclase compositional values plot within the FAN suite field (after Warren, 1993). The very high anorthite content (98-99%) and cataclastic texture is similar to Apollo 16 cataclastic FANs. Paired with Gadamis 002. Specimens: 24.32 g on deposit at UNM, Mark Lyon and Craig Zlimen hold the main masses. | ||||||||||||||||||||||||||||||||||
| Bibliography: |
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| Data from: MB110 Table 0 Line 0: |
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| Institutions and collections |
UNM: Institute of Meteoritics
MSC03 2050
University of New Mexico
Albuquerque NM 87131-1126
USA, United States; Website (institutional address; updated 12 Feb 2015) |
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| References: | Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography:
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Statistics: This is 1 of 33 approved meteorites from Ghadamis, Libya (plus 2 unapproved names) This is 1 of 1547 approved meteorites from Libya (plus 23 unapproved names) (plus 2 impact craters) | ||||||||||||||||||||||||||||||||||
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