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Allan Hills 84096 | |||||||||||||||||||||||||
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Basic information | Name: Allan Hills 84096 This is an OFFICIAL meteorite name. Abbreviation: ALH 84096 Observed fall: No Year found: 1984 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 294 g | ||||||||||||||||||||||||
Classification history: |
This is the only approved meteorite classified as LL6(?). Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||
Writeup |
Writeup from AMN 9(3):
Sample No.: ALH84096 Location: Allan Hills Weight (g): 293.6 Field No.: 2515 Dimensions (cm): 10 x 5 x 4 Meteorite Type: C4 Chondrite
Macroscopic Description: Carol Schwarz Thin fusion crust covers 70% of this specimen. Areas devoid of fusion crust are mostly weathered and have a rough texture. Fresher areas are gray in color with some darker gray clasts, white clasts, and metal. The interior is medium gray and has several darker gray clasts. Chipping exposed a metal-rich area of several mm .
Thin Section (,4) Description: Brian Mason The section has a brecciated appearance, with angular areas up to 5 mm across differing in color from pale gray to dark brown; however, the grain size is fairly uniform throughout. The meteorite appears to consist largely of fine-grained olivine (grain size 0.01-0.1 mm) with a small amount (2-3%) of nickel-iron and sulfide. Chondritic structure is barely perceptible. Microprobe analyses gave the following compositions: olivine, Fa30; pyroxene, Fs22; plagioclase, An10. The meteorite is tentatively classified as a C4 chondrite. | ||||||||||||||||||||||||
Data from: MB76 Table 2 Line 1061: |
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Catalogs: |
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References: | Published in Antarctic Meteorite Newsletter 9(3) (1986), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography: |
Statistics: This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
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Revision history: |
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