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| Allan Hills A77064 | |||||||||||||||||||||||||
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| Basic information | Name: Allan Hills A77064 This is an OFFICIAL meteorite name. Abbreviation: ALHA77064 This meteorite may also be called Allan Hills 77064 (ALH 77064) in publications. Observed fall: No Year found: 1977 Country: Antarctica [Collected jointly by ANSMET (US) and NIPR (Japan)] Mass:  6.5 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 10209 approved meteorites (plus 18 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.: ALHA77064 Location: Allan Hills Field No.: 77122786 Weight (gms): 6.47 Meteorite Type: H5 Chondrite
Physical Description: The sample is angular. Approximately 1/2 the exterior surface is covered by a brownish-black fusion crust that ranges up to 2 mm in thickness. The remaining exterior surface is light to medium gray with appreciable iron-oxide staining. Several rounded inclusions, some of which are ringed with black material, are present on the fracture surface. From field photographs it appears that the B surface is resting on the ice.
Petrographic Description: Brian Mason This meteorite is similar in texture, mineral composition, and degree of weathering to Allan Hills 77061 and 77062, which suggests that these three stones may be separate pieces of the same meteorite. | ||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 58: |
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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 40719 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||||||||||||||
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