ACONDRITI Lunari e Marziane
ACONDRITI
TATAHOUNIE
| Country: | Africa |
| State/District: | Tatawin, Tunisia |
| Coordinates: | |
| Date of fall/find: | Fall 1931 |
| Total known weight: | 12 kg |
| Number of pieces: | |
| Type: | Achondrite |
Following a tremendous explosion on June 27, 1931 a few pieces of this Achondritic Diogenite meteorite were found. In several phases of rediscoveries more pieces of meteorite have been recovered. Tatahouine meteorite is Olive Green with black veins up to 2 mm wide running through it. The Tatahouine meteorite is one of the finest examples of the rare Diogenite classification of meteorites.
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TAFASSASSET
| Country: | |
| State/District: | |
| Coordinates: | |
| Date of fall/find: | Found |
| Total known weight: | kg |
| Number of pieces: | |
| Type: | Achondrite |
METEORITI MARZIANE
MARTIAN NWA 4925
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METEORITI LUNARI
Dar al Gani 400 (ALUN-A)
| Country: | Libya |
| State/District: | Al Jufrah |
| Coordinates: | 27°22.17'N, 16°11.93'E |
| Date of fall/find: | Found 1998, March 10 |
| Total known weight: | 1.425 kg |
| Number of pieces: weight: | 1 0,56 gr. |
| Type: | Stone. Achondrite, lunar anorthosite, brecciated |
Dar al Gani 400 is a lunar meteorite. It was found on March 10, 1998. Only the one stone of 1425 grams was found. DaG 400 is an anorthositic breccia consisting of impact-melt breccias, granulitic fragments, recrystallized anorthosites, and mineral fragments. The O isotope composition is characteristic of lunar highland meteorites.
DaG 400 was one of the early lunar meteorites to be discovered.
It is also an anorthositic breccia in contrast to the many feldspathic breccias more recently discovered.
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Northwest Africa (NWA) 11273 Lunar
| Country: | Northwest Africa |
| State/District: | Tindouf, Algeria |
| Coordinates: | |
| Date of fall/find: | Found 2017 |
| Total known weight: | 2,808 kg |
| Number of pieces: Specimen weight: | 12.18 gr. |
| Type: | Achondrite, lunar feldspathic breccia |
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History: Material excavated from a site near Tindouf, Algeria was purchased by a consortium of collectors (Rob Wesel, Eric Twelker and Jason Phillips) in April 2017 from Moroccan dealers.
Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of mineral clasts of anorthite, olivine, exsolved pigeonite, pigeonite, augite, chromite, Ti-Cr-Fe spinel, kamacite, taenite and troilite in a finer grained matrix containing small vesicles and minor barite. Rare basalt clasts and glass fragments are also present.
Geochemistry: Olivine (Fa8.7-59.7, FeO/MnO = 89-111, N = 4), pigeonite (Fs28.8Wo11.2, FeO/MnO = 56), clinopyroxene host (Fs15.3Wo40.9, FeO/MnO = 44), orthopyroxene exsolution lamella (Fs34.0Wo2.7, FeO/MnO = 56), augite (Fs16.8Wo41.7, FeO/MnO = 62), plagioclase (An95.9-96.5Or0.2, N = 2).
Classification: Lunar (feldspathic regolith breccia).
Specimens: 37 g including one polished slice at UWB; remaining pieces shared by Mr. R. Wesel, Mr. E. Twelker and Mr. J. Phillips.
Dhofar 1180 Lunar Feldspathic Breccia .0226 grammi
