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| Allan Hills A79015 | |||||||||||||||||||||
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| Basic information | Name: Allan Hills A79015 This is an OFFICIAL meteorite name. Abbreviation: ALHA79015 This meteorite may also be called Allan Hills 79015 (ALH 79015) in publications. Observed fall: No Year found: 1979 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  64 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 11567 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 4(1):
Sample No.: ALHA79015 Location: Allan Hills Field No.: 1169 Weight (gms): 64.0 Meteorite Type: H5 Chondrite
Physical Description: Roberta Score Sample was in two pieces when it was received in the lab. When put together, the stone has a tabular shape with the top surface being rounded and the bottom flat. Most of the stone is covered with a dull porous-looking black fusion crust The interior material has a 1-2 mm weathering rind. The general color of the interior is light gray with reddish-brown oxidation scattered throughout. Darker gray clasts are visible. Dimensions: 4.5 x 2.5 x 2 cm.
Petrographic Description: Brian Mason Chondrules are prominent, ranging from 0.6-1.2 mm across. They are set in a granular matrix consisting largely of olivine and pyroxene, with minor amounts of nickel-iron and troilite. The section is partly rimmed with fusion crust. Some limonitic staining is present, mainly in association with nickel-iron grains Microprobe analyses gave the following mineral compositions: olivine, Fa17; pyroxene, Fs15. The meteorite is classified as an H5 chondrite. | ||||||||||||||||||||
| Data from: MB76 Table 2 Line 453: |
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| References: | Published in Antarctic Meteorite Newsletter 4(1) (1981), 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 44543 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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| Revision history: |
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