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| Allan Hills A77025 | |||||||||||||||||||||||||
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| Basic information | Name: Allan Hills A77025 This is an OFFICIAL meteorite name. Abbreviation: ALHA77025 This meteorite may also be called Allan Hills 77025 (ALH 77025) in publications. Observed fall: No Year found: 1977 Country: Antarctica [Collected jointly by ANSMET (US) and NIPR (Japan)] Mass:  19.4 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 11372 approved meteorites (plus 22 unapproved names) classified as H5. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||
| Writeup |
Writeup from AMN 4(1):
Sample No.: ALHA77025 Location: Allan Hills Field No.: 77122727 Weight (gms): 19.40 Meteorite Type: H5 Chondrite
Physical Description: Specimen is tabular and rounded. The entire surface is covered with a brownish-black fusion crust. A few small fissures in the crust reveal a medium gray interior. Specimen is moderately weathered and chipped easily. The freshly chipped surface revealed some flecks of fresh metal, however, it is mostly iron oxide stained. Approximate length is 3.0 cm.
Petrographic Description: Brian Mason This meteorite is similar in texture, mineral composition, and degree of weathering to ALHA77021, which suggests that these two stones may be separate pieces of the same meteorite. | ||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 31: |
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| References: | Published in Antarctic Meteorite Newsletter 4(1) (1981), 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 44248 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
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