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| Allan Hills A77164 | |||||||||||||||||||||||||
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| Basic information | Name: Allan Hills A77164 This is an OFFICIAL meteorite name. Abbreviation: ALHA77164 This meteorite may also be called Allan Hills 77164 (ALH 77164) in publications. Observed fall: No Year found: 1977 Country: Antarctica [Collected jointly by ANSMET (US) and NIPR (Japan)] Mass:  38.1 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 98 approved meteorites classified as L3.5. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||
| Writeup |
Writeup from AMN 1(3):
This text was reprinted from AMN 1(3) in AMN 4(1). In some cases, it may be an updated version from the original. Sample No.: ALHA77164 Location: Allan Hills Field No.: 77123003 Weight (gms): 38.14 Meteorite Type: L3 Chondrite
Physical Description: Specimen is angular. Approximately 75% of the exterior surface of the sample is a fracture surface. This surface is dark brown and has a patina, which is probably due to a combination of chemical weathering and wind erosion. Nearly 25% of the sample is covered by a dark brown, patchy, thin fusion crust. This is not a complete specimen. Its maximum length is ~3.0 cm. No fresh metal was observed when the meteorite was chipped for thin section preparation.
Petrographic Description: Brian Mason .This specimen is similar in texture, mineral composition, and degree of weathering to ALHA77160, which suggests it may be another piece of the same meteorite. | ||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 131: |
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| References: | Published in Antarctic Meteorite Newsletter 1(3) (1978), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography:
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Statistics: This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
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| Revision history: |
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