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| Lewis Cliff 87271 | |||||||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 87271 This is an OFFICIAL meteorite name. Abbreviation: LEW 87271 Observed fall: No Year found: 1987 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  0.9 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 544 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: 4750 | ||||||||||||||||||||||||
| Writeup |
Writeup from AMN 11(2):
Sample No.: LEW87271 Location: Lewis Cliff Weight (g): 0.9 Field No.: 4750 Dimensions (cm): 1.8 x 0.6 x 1 Meteorite Type: C2 Chondrite
Macroscopic Description: Carol Schwarz This small smooth fragment is covered with black fractured fusion crust except for one weathered surface devoid of fusion crust. The interior is black to brownish in color with small <1 mm inclusions. Salt deposits are abundant next to the fusion crust.
Thin Section (,2) Description: Brian Mason The section shows sparse chondrules, up to 0.6 mm across, and small mineral grains in a dark brown to black matrix. Microprobe analyses show most olivine near Mg2SiO4 in composition, but ranging up to Fa24 (mean composition is Fa4); a little pyroxene, near MgSiO3, is present. The meteorite is a C2 chondrite, but does not appear to belong to the LEW87001 group. | ||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 3835: |
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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 40719 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||||||||||||||
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