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| MacAlpine Hills 88184 | |||||||||||||||||||||||||
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| Basic information | Name: MacAlpine Hills 88184 This is an OFFICIAL meteorite name. Abbreviation: MAC 88184 Observed fall: No Year found: 1988 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  20.6 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 27 approved meteorites classified as EL3. [show all] Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 3), and Enstatite-rich meteorites | ||||||||||||||||||||||||
| Comments: | Field number: 6170 | ||||||||||||||||||||||||
| Writeup |
Writeup from AMN 13(2):
Sample No: MAC88184 Location: MacAlpine Hills Dimensions (cm): 4x2.5x1.5 Field Number: 6670 Weight (g): 20.6 Meteorite Type: E3 chondrite
Macroscopic Description: Robbie Marlow Brown and black frothy fusion crust covers 95% of MAC88184. Deep cracks penetrate the interior. Oxidation is heavy and has masked any interior structure present.
Thin Section (,3) Description: Brian Mason Chondrules and chondrule fragments are abundant, ranging up to 1.5 mm across; they consist of granular or cryptocrystalline pyroxene. The matrix consists largely of small pyroxene grains, with some nickel-iron and minor sulfides. Microprobe analyses show that the pyroxene is clinoenstatite, with variable but low iron content (FeO 0.4-1.8%); the metal grains show a low and variable silicon content, ranging up to 0.6%. The meteorite is tentativley classified as an E3 enstatite chondrite, probably paired with MAC88136 and 88180. | ||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 4732: |
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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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