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| Pecora Escarpment 91355 | |||||||||||||||||||||
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| Basic information | Name: Pecora Escarpment 91355 This is an OFFICIAL meteorite name. Abbreviation: PCA 91355 Observed fall: No Year found: 1991 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  3.2 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 22 approved meteorites classified as LL3.5. [show all] Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||
| Writeup |
Writeup from AMN 16(2):
Sample No.: PCA91355 Location: Pecora Escarpment Dimensions (cm): 1.5 x 1.2 x 0.8 Weight (g): 3.2 Meteorite Type: LL3 chondrite
Macroscopic Description: Cecilia Satterwhite The exterior is almost completely covered with dull, black, frothy fusion crust. A few light colored inclusions are still visible in the extremely rusted interior.
Thin Section (,2) Description: Brian Mason The section shows numerous chondrules and chondrule fragments, up to 1.2 mm across, in a finely granular matrix of olivine and pyroxene with accessory nickel-iron and sulfide. Brown limonitic staining pervades the section. Olivine compositions range from Fa1 to Fa34, with a marked peak at Fa31; pyroxene compositions range from Fs5 to Fs17. The meteorite is classified as an LL3 chondrite (estimated LL3.5).
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| Data from: MB76 Table 2 Line 5148: |
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| References: | Published in Antarctic Meteorite Newsletter 16(2) (1993), JSC, Houston Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Statistics: This is 1 of 40744 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||||||||||
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