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| Allan Hills 84052 | |||||||||||||||||||||
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| Basic information | Name: Allan Hills 84052 This is an OFFICIAL meteorite name. Abbreviation: ALH 84052 Observed fall: No Year found: 1984 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  10.5 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 2880 approved meteorites (plus 2 unapproved names) classified as LL6. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||
| Writeup |
Writeup from AMN 9(2):
Sample No.: ALH84052 Location: Allan Hills Weight (g): 10.5 Field No.: 1452 Dimensions (cm): 2.5 x 1.8 x 1.8 Meteorite Type: LL6 Chondrite
Macroscopic Description: Carol Schwarz Black to slightly reddish-brown fusion crust covers 50% of this pebble. The remainder of its surface is black. No features are visible in the black interior except for some metal(?) flecks and reddish-brown staining.
Thin Section (,3) Description: Brian Mason Chondritic structure is barely perceptible, being represented by a few chondrule fragments in a granular matrix consisting largely of olivine and pyroxene; small amounts of nickel-iron and troilite are present as widely dispersed tiny grains, possibly a shock effect. The texture suggests an aggregate of microclasts. Microprobe analyses give the following compositions: olivine, Fa29; pyroxene, Fs24; plagioclase, An11. The meteorite is classified as an LL6 chondrite. | ||||||||||||||||||||
| Data from: MB76 Table 2 Line 1017: |
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| References: | Published in Antarctic Meteorite Newsletter 9(2) (1986), 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 43840 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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