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MacAlpine Hills 88102 | |||||||||||||||||||||
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Basic information | Name: MacAlpine Hills 88102 This is an OFFICIAL meteorite name. Abbreviation: MAC 88102 Observed fall: No Year found: 1988 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 754 g | ||||||||||||||||||||
Classification history: |
This is 1 of 270 approved meteorites classified as Mesosiderite. [show all] Search for other: Mesosiderites, Metal-rich meteorites | ||||||||||||||||||||
Comments: | Field number: 5738 | ||||||||||||||||||||
Writeup |
Writeup from AMN 13(3):
Sample No.: MAC88102 Location: MacAlpine Hills Dimensions (cm): 8x6x6 5 Field Number: 5738 Weight (g): 754.3 Meteorite Type: Mesosiderite
Macroscopic Description: Roberta Score, MAC88102 is an angular, considerably weathered mesosiderite. Small patches of dull fusion crust are scattered over the red brown exterior. There are abundant large weathered silicate inclusions as large as 1 x 2.5 cm, which are greenish to black in color. This specimen broke along a pre existing fracture exposing extremely weathered material with abundant powdery rust Most likely this is not representative of the entire meteorite. The metal is still very coherent, as obtaining a chip from other than along a pre-existing crack was nearly impossible.
Thin Section (,5) Description, Brian Mason The section consists largely of nickel-iron.. with a minor amount of silicate material. Much of the silicate material is comminuted pyroxene and plagioclase, but with some clasts up to 24 mm long; a little olivine and accessory tridymite and merrillite are present. Most of the pyroxene has a uniform composition Wo3Fs30, but a few more calcic grains were analysed. The composition of an olivine clast is Fa18. Plagioclase compositions are in the range An86-95. The meteorite is a mesosiderite. | ||||||||||||||||||||
Data from: MB76 Table 2 Line 4650: |
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Catalogs: |
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References: | Published in Antarctic Meteorite Newsletter 13(3) (1990), 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: |
This lists important revisions made to data for this record.
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