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| MacAlpine Hills 88101 | |||||||||||||||||||||||||
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| Basic information | Name: MacAlpine Hills 88101 This is an OFFICIAL meteorite name. Abbreviation: MAC 88101 Observed fall: No Year found: 1988 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  20.9 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 636 approved meteorites classified as CM2. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites | ||||||||||||||||||||||||
| Comments: | Field number: 5483 | ||||||||||||||||||||||||
| Writeup |
Writeup from AMN 13(2):
Sample No. MAC88101 Location: MacAlpine Hills Dimensions (cm): 4.2x3x2 Field Number: 5483 Weight (g): 20.9 Meteorite Type: C2 chondrite
Macroscopic Description: Robbie Marlow Eighty percent of the fusion crust on this carbonaceous chondrite has been plucked off. The fusion crust remaining is thick and dull black. Areas devoid of fusion crust are greenish in color. The interior matrix is black with a greenish-tinge and has no obvious inclusions. Traces of evaporite deposit were noted immediately underneath the fusion crust.
Thin Section (,3) Description: Brian Mason The section shows a few small chondrules and numerous mineral grains in a dark brown to black semi-translucent matrix. The chondrules and mineral grains consist largely of olivine, with minor pyroxene; a few calcite grains were noted. Microprobe analyses show that most of the olivine is near Mg2SiO4 in composition, with a few more iron-rich grains; pyroxene is clinoenstatite, with composition range Fs1-5. The meteorite is a C2 carbonaceous chondrite. | ||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 4649: |
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| References: | Published in Antarctic Meteorite Newsletter 13(2) (1990), 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 44547 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
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| Revision history: |
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