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Lewis Cliff 90500 | |||||||||||||||||||||||||||||
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Basic information | Name: Lewis Cliff 90500 This is an OFFICIAL meteorite name. Abbreviation: LEW 90500 Observed fall: No Year found: 1990 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 295 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 636 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: 6177 | ||||||||||||||||||||||||||||
Writeup |
Writeup from AMN 14(2):
Sample No.: LEW90500 Location: Lewis Cliff Field Number: 6177 Dimensions (cm): 7 x 6.5 x 6 Weight (g): 294.7 Meteorite Type: Carbonaceous C1
Macroscopic Description: Cecilia Satterwhite This carbonaceous chondrite is covered with dull black fusion crust that is weathered in some areas and frothy in others. Areas devoid of fusion crust are heavily pitted. Black matrix with small lighter colored inclusions make up the interior of this meteorite. Although the sample is coherent, it breaks easily.
Thin Section (.7) Description: Brian Mason The section is 90% black matrix, with scattered olivine grains up to 0.3 mm across; chondrules are few and small. Olivine grains show a wide range in composition, Fa1-28. The meteorite is tentatively classified as a C1 chondrite.
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Data from: MB76 Table 2 Line 4626: |
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Catalogs: |
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References: | Published in Antarctic Meteorite Newsletter 14(2) (1991), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Geography: |
Statistics: This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||||||
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Revision history: |
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