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| MacAlpine Hills 87310 | |||||||||||||||||||||
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| Basic information | Name: MacAlpine Hills 87310 This is an OFFICIAL meteorite name. Abbreviation: MAC 87310 Observed fall: No Year found: 1987 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  411 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 2062 approved meteorites (plus 5 unapproved names) classified as L4. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||
| Comments: | Field number: 4545 | ||||||||||||||||||||
| Writeup |
Writeup from AMN 11(2):
Sample No.: MAC87310 Location: MacAlpine Hills Weight (g): 411.0 Field No.: 4545 Dimensions (cm): 7 x 7 x 5 Meteorite Type: L4 Chondrite with enclave
Macroscopic Description: René Martinez The interior of this meteorite is dark gray with light and dark irregular inclusions and chondrules. The specimen is nearly spherical and very coherent. No fusion crust remains. The specimen was sawn to sample the interior and contaminated slightly with oil in the process.
Thin Section (,14) Description: Brian Mason The section shows abundant chondrules and chondrule fragments (up to 1.8 mm across) in a fine-grained matrix of olivine and pyroxene, with minor nickel-iron and troilite. In the center of the section is an angular clast, 6 x 3 mm, consisting essentially of fine-grained (0.05 mm) olivine. Mineral compositions of the main part are: olivine, Fa23; pyroxene, Fs19. Clast olivine is Fa14-20. The meteorite is an L4 chondrite, but the clast is clearly foreign. | ||||||||||||||||||||
| Data from: MB76 Table 2 Line 4637: |
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| References: | Published in Antarctic Meteorite Newsletter 11(2) (1988), 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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