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| Lewis Cliff 85306 | |||||||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 85306 This is an OFFICIAL meteorite name. Abbreviation: LEW 85306 Observed fall: No Year found: 1985 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  6.5 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 10 approved meteorites classified as CM2-an. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites | ||||||||||||||||||||||||
| Comments: | Field number: 2001
Revised 3 Jun 2019: reclassified in AMN 41(1) | ||||||||||||||||||||||||
| Writeup |
Writeup from AMN 9(3):
Sample No.: LEW85306, 85309, 85311, 85312 Location: Lewis Cliff Field Nos.: 2001; 2047; 3103; 3108 Weight (g): 6.5; 54.1; 199.5; 31.7 Dimensions (cm): 2.5x2.5x1.5; 6x3.5x3; 6x5x5 and 5x2x3; 4.5x3x3 Meteorite Type: C2 Chondrite
Macroscopic Description: René Martinez Frothy black fusion crust appears as patches on these stones. The interiors of these fragments have abundant light-colored clasts/chondrules that are set in a black fine-grained matrix. Thin evaporite deposit is present on 85309. Some brownish-red oxidation was noted.
Thin Section (LEW85306,3) Description: Brian Mason The section shows numerous mineral grains and aggregates and a few small (maximum diameter 0.6 mm) chondrules in a brown to black matrix. Most of the mineral grains are olivine, usually near Mg2SiO4 in composition, but some are more iron-rich. Pyroxene is less abundant, and is near MgSiO3 in composition. The meteorite is a C2 chondrite.
LEW85309, 85311, and 85312 are very similar to LEW85306 in texture and mineral compositions, and the possibility of pairing should be considered. Writeup from AMN 41(1): | ||||||||||||||||||||||||
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| Data from: MB76 Table 2 Line 2881: |
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| References: | Published in Antarctic Meteorite Newsletter 41(1) (2018), JSC, Houston Published in Antarctic Meteorite Newsletter 9(3) (1986), 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 43856 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
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