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| Lewis Cliff 85396 | |||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 85396 This is an OFFICIAL meteorite name. Abbreviation: LEW 85396 Observed fall: No Year found: 1985 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  60.2 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 62 approved meteorites classified as L3.6. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||
| Comments: | Field number: 3102 | ||||||||||||||||||||
| Writeup |
Writeup from AMN 10(1):
Sample No.: LEW85396 Location: Lewis Cliff Weight (g): 60.2 Field No.: 3102 Dimensions (cm): 4.5x3.0x2.0 Meteorite Type: L3 Chondrite
Macroscopic Description: Cecilia Satterwhite Some exterior surfaces retain the black fusion crust. Areas without fusion crust are dark brown and show some light colored chondrules/inclusions. The interior is extensively weathered, though a few small inclusions/chondrules are visible.
Thin section (,3) Description: Brian Mason The section shows a closely packed mass of chondrules (0.3-1.8 mm across), chondrule fragments, and irregular granular aggregates, set in a small amount of dark matrix which includes minor amounts of nickel-iron and troilite. Most chondrules consist of granular or porphyritic olivine, some with polysynthetically twinned clinopyroxene. Some weathering is indicated by the presence of a moderate amount of brown limonite as veinlets and patches. Both olivine and pyroxene show a wide range in composition: olivine, Fa1-26, mean Fa13; pyroxene, Fs3-25. This range of compositions indicates type 3, and the small amount of nickel-iron suggests L group; the meteorite is therefore classed as an L3 chondrite. | ||||||||||||||||||||
| Data from: MB76 Table 2 Line 2968: |
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| References: | Published in Antarctic Meteorite Newsletter 10(1) (1987), 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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