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| Lewis Cliff 85383 | |||||||||||||||||||||
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| Basic information | Name: Lewis Cliff 85383 This is an OFFICIAL meteorite name. Abbreviation: LEW 85383 Observed fall: No Year found: 1985 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  18.5 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 75 approved meteorites classified as H3.7. [show all] Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||
| Comments: | Field number: 2453 | ||||||||||||||||||||
| Writeup |
Writeup from AMN 13(2):
Sample No. LEW85383 Location: Lewis Cliff Dimensions (cm): 3x2.5x2 Field Number: 2453 Weight (g): 18.5 Meteorite Type: H3 chondrite
Macroscopic Description: Roberta Score This angular stone is completely covered with polished black fusion crust. The interior is heavily oxidized, masking any structure present.
Thin Section (,3) Description: Brian Mason The section shows abundant chondrules and chondrule fragments, up to 1.5 mm across, in a minor amount of finely granular matrix containing considerable nickel-iron and lesser troilite. A variety of chondrule types is present, mostly porphyritic and granular olivine and olivine-pyroxene, but some cryptocrystalline and radiating pyroxene chondrules were seen. Weathering is extensive, with brown limonitic staining throughout the section. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa6-23, mean Fa17 (CV FeO is 26); pyroxene, Fs2-18. The meteorite is classified as an H3 chondrite, estimated H3.7.
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| Data from: MB76 Table 2 Line 2955: |
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| References: | Published in Antarctic Meteorite Newsletter 13(2) (1990), 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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| Revision history: |
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