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| Lewis Cliff 86014 | |||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 86014 This is an OFFICIAL meteorite name. Abbreviation: LEW 86014 Observed fall: No Year found: 1986 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  662 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: 3252 | ||||||||||||||||||||
| Writeup |
Writeup from AMN 11(1):
Sample No.: LEW86014 Location: Lewis Cliff Weight (g): 662.4 Field No.: 3252 Dimensions (cm): 13.5x9.5x4 Meteorite Type: 1.4 Chondrite
Macroscopic Description: Roberta Score, This flat chondrite fragment has thin fusion crust on 50% of its exterior surface. The areas devoid of fusion crust are red-brown in color. A few chondrules are discernable in the extensively weathered interior. This stone was extremely difficult to break despite its flat shape!
Thin Section (,4) Description: Brian Mason Most of the section consists of a close-packed aggregate of chondrules with minor amounts of nickel-iron and troilite, but it contains an elliptical polycrystalline inclusion (5x3 mm) made up of polysynthetically twinned clinopyroxene, olivine, minor plagioclase, and one large grain of merrillite. Chondrules range up to 1.5 mm across, and show a variety of types: granular and porphyritic olivine and olivine-pyroxene, barred olivine, and cryptocrystalline pyroxene. Microprobe analyses of the chondritic portion give the following compositions: olivine, Fa24; pyroxene, Fs17-22 Compositions in the inclusion are olivine, Fa23; pyroxene, Fs17; plagioclase, An81. The meteorite is an L4 chondrite. | ||||||||||||||||||||
| Data from: MB76 Table 2 Line 3057: |
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| References: | Published in Antarctic Meteorite Newsletter 11(1) (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 44547 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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| Revision history: |
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