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| Allan Hills A81037 | |||||||||||||||||||||
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| Basic information | Name: Allan Hills A81037 This is an OFFICIAL meteorite name. Abbreviation: ALHA81037 This meteorite may also be called Allan Hills 81037 (ALH 81037) in publications. Observed fall: No Year found: 1981 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  320 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 6148 approved meteorites (plus 5 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 6(1):
Sample No.: ALHA81037 Location: Allan Hills Field No.: 1489 Weight (gms): 320.3 Meteorite Type: H6 Chondrite
Physical Description: Carol Schwarz This angular specimen has fusion crust on all but two sides. The fusion crust is black with rust haloes and is polygonally fractured. The interior is moderately weathered with oxidation haloes in a light yellowish-gray matrix. Dimensions: 7.5 x 6 x 4 cm.
Petrographic Description: Brian Mason Chondrules are sparse and poorly defined, merging with the granular ground-mass, which consists largely of olivine and pyroxene, with minor amounts of nickel-iron, troilite, and plagioclase. Well preserved fusion crust is present along one edge. Areas of brown limonitic staining occur throughout the section. Microprobe analyses give the following compositions: olivine, Fa20; orthopyroxene, Fs17; plagioclase, An12. The meteorite is an H6 chondrite. | ||||||||||||||||||||
| Data from: MB76 Table 2 Line 560: |
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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 40719 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||||||||||
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