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Allan Hills A81113 | |||||||||||||||||||||
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Basic information | Name: Allan Hills A81113 This is an OFFICIAL meteorite name. Abbreviation: ALHA81113 This meteorite may also be called Allan Hills 81113 (ALH 81113) in publications. Observed fall: No Year found: 1981 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 111.1 g | ||||||||||||||||||||
Classification history: |
This is 1 of 11505 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 6(2):
Sample No.: ALHA81113 Location: Allan Hills Field No.: 1646 Weight (gms): 111.1 Meteorite Type: H5 Chondrite
Physical Description: Carol Schwarz This angular specimen is iridescent red-brown and extremely fractured. The interior is weathered except for a small area of yellowish matrix. Dimensions: 7 x 3.5 x 3.5 cm
Petrographic Description: Brian Mason Chondrules are moderately abundant, but some are poorly defined, tending to merge with the granular groundmass, which consists largely of olivine and pyroxene, with minor amounts of nickel-iron and troilite. Weathering is extensive, with veins and small areas of brown limonite throughout the section. Microprobe analyses gave the following results: olivine, Fa18; orthopyroxene, Fs16. The meteorite is classified as an H5 chondrite. | ||||||||||||||||||||
Data from: MB76 Table 2 Line 636: |
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Catalogs: |
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References: | Published in Antarctic Meteorite Newsletter 6(2) (1983), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography: |
Statistics: This is 1 of 44400 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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Revision history: |
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