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| Allan Hills A78102 | |||||||||||||||||||||||||
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| Basic information | Name: Allan Hills A78102 This is an OFFICIAL meteorite name. Abbreviation: ALHA78102 This meteorite may also be called Allan Hills 78102 (ALH 78102) in publications. Observed fall: No Year found: 1978 Country: Antarctica [Collected jointly by ANSMET (US) and NIPR (Japan)] Mass:  337 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 11567 approved meteorites (plus 23 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 3(1):
This text was reprinted from AMN 3(1) in AMN 4(1). In some cases, it may be an updated version from the original. Sample No.: ALHA78102 Location: Allan Hills Field No.: 494 Weight (gms): 336.9 Meteorite Type: H5 Chondrite
Physical Description: A large proportion of the exterior of this 9.0 x 6.0 x 6.0 cm sample is weathered and stained by iron oxidation and spotted with small patches of black fusion crust. Except for the inner most material, this sample is totally weathered. The light matrix material of the inner most material is spotted with iron-oxidation and contains many small (as great as 3 mm. in maximum diameter) dark clasts.
Petrographic Description: Brian Mason Chondritic structure is fairly prominent, but the margins of the chondrules are frequently ill-defined and tend to merge with the granular groundmass, which consists of olivine and pyroxene with minor amounts of nickel-iron and troilite. Microprobe analyses give the following compositions: olivine, Fa18; pyroxene, Fs17. The meteorite is an H5 chondrite. | ||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 326: |
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| References: | Published in Antarctic Meteorite Newsletter 3(1) (1980), 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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