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| Allan Hills A81044 | |||||||||||||||||||||
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| Basic information | Name: Allan Hills A81044 This is an OFFICIAL meteorite name. Abbreviation: ALHA81044 This meteorite may also be called Allan Hills 81044 (ALH 81044) in publications. Observed fall: No Year found: 1981 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  387 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 6407 approved meteorites (plus 2 unapproved names) classified as H4. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||
| Writeup |
Writeup from AMN 6(1):
Sample No.: ALHA81044 Location: Allan Hills Field No.: 1125 Weight (gms): 386.8 Meteorite Type: H4 Chondrite
Physical Description: Carol Schwarz This meteorite is extremely weathered and fractured. No fresh material was exposed by chipping. Dimensions: 8.5 x 6 x 5 cm.
Petrographic Description: Brian Mason Chondrules are abundant, and are set in a granular groundmass of olivine and pyroxene, with minor amounts of nickel-iron and troilite. Some of the pyroxene in chondrules is polysynthetically twinned clinobronzite. Brown limonitic staining pervades the section. Microprobe analyses give the following compositions: olivine, Fa18; pyroxene, Fs16. The meteorite is classified as an H4 chondrite. See also ALHA81041 | ||||||||||||||||||||
| Data from: MB76 Table 2 Line 567: |
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| References: | Published in Antarctic Meteorite Newsletter 6(1) (1983), 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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