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| Lewis Cliff 88005 | |||||||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 88005 This is an OFFICIAL meteorite name. Abbreviation: LEW 88005 Observed fall: No Year found: 1988 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  254 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 355 approved meteorites classified as Eucrite-pmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||
| Comments: | Field number: 6200 | ||||||||||||||||||||||||
| Writeup |
Writeup from AMN 12(3):
Sample No.: LEW88005 Location: Lewis Cliff Dimensions (cm): 7x6x4 Field Number: 6200 Weight (g): 253.9 Meteorite Type: Monomict Eucrite
Macroscopic Description: Roberta Score Ten percent of the original fusion crust remains on LEW88005. Many large semi-rounded clasts, as large as 2 x 2 cm, are present. These clasts include mono- and poly-mineralic clasts, aphantic clasts and eucritic type clasts. Several areas are stained with oxidation. In hand specimen, LEW88005 closely resembles LEW85300, LEW85302 and LEW85303.
Thin Section (,11) Description: Brian Mason The section shows a microbreccia of polycrystalline clasts in a fine-grained matrix of comminuted pyroxene and plagioclase. The clasts range up to 5 mm across, and are fine- to coarse-grained aggregates of pyroxene and plagioclase. Microprobe analyses show pyroxene compositions ranging fairly continuously from Wo1Fs59 to Wo42Fs25, with a limited range in En content (En31-43). Plagioclase compositions are in the range An88-93, with a mean of An92, Accessory grains of a silica polymorph, probably tridymite, were analysed. The meteorite is a monomict eucrite. | ||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 3862: |
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| References: | Published in Antarctic Meteorite Newsletter 12(3) (1989), 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 40759 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||||||||||||||
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