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| Allan Hills A80122 | |||||||||||||||||||||
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| Basic information | Name: Allan Hills A80122 This is an OFFICIAL meteorite name. Abbreviation: ALHA80122 This meteorite may also be called Allan Hills 80122 (ALH 80122) in publications. Observed fall: No Year found: 1980 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  49.8 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 6825 approved meteorites (plus 6 unapproved names) classified as H6. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||
| Writeup |
Writeup from AMN 5(1):
Sample No.: ALHA80122 Location: Allan Hills Field No.: 1017 Weight (gms): 49.3 Meteorite Type: H6 Chondrite
Physical Description: Carol Schwarz Fusion crust is present on all but one face of this angular specimen. Shallow regmaglypts occur on the fusion crust covered surfaces. The fusion crust is dull black and approximately 1 mm thick. The interior is gray with some small chondrules or clasts visible. A brown weathering rind from 1 mm to 1 cm wide is present. Dimensions: 4 x 3 x 2 cm
Petrographic Description: Brian Mason Chondrules are present, but. they are poorly defined and tend to merge with the granular groundmass, which consists mainly of olivine and pyroxene, with minor amounts of nickel-iron, plagioclase, and troilite. Brown limonitic staining is present in association with the nickel-iron. Microprobe analyses gave the following compositions: olivine, Fa18; pyroxene, Fs16; plagioclase, An12. The meteorite is classified as an H6 chondrite. | ||||||||||||||||||||
| Data from: MB76 Table 2 Line 512: |
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| References: | Published in Antarctic Meteorite Newsletter 5(1) (1982), 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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