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| LaPaz Icefield 91900 | |||||||||||||||||||||
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| Basic information | Name: LaPaz Icefield 91900 This is an OFFICIAL meteorite name. Abbreviation: LAP 91900 Observed fall: No Year found: 1991 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  787 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 510 approved meteorites classified as Diogenite. [show all] Search for other: Achondrites, Diogenites, and HED achondrites | ||||||||||||||||||||
| Writeup |
Writeup from AMN 15(2):
Sample No.: LAP91900 Location: LaPaz Icefield Field Number: 7710 Dimensions (cm): 13.0 x 6.9 x 6.0 Weight (g): 786.9 Meteorite Type: Diogenite
Macroscopic Description: Cecilia Satterwhite This light grayish-green colored achondrite has dull, black, patchy fusion crust scattered over the exterior. The crystalline interior surfaces are more greenish-gray in color. A minor amount of metal is visible in the medium to coarse grained textured matrix.
Thin Section (,8) Description: Brian Mason The section consists of orthopyroxene clasts, up to 3.6 mm in maximum dimension, in a groundmass of comminuted orthopyroxene. Pyroxene compositions are essentially uniform, Wo2Fs23, with Al2O3 0.5%, MnO 0.6%. This meteorite is a diogenite.
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| Data from: MB76 Table 2 Line 2873: |
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| References: | Published in Antarctic Meteorite Newsletter 15(2) (1992), 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 43840 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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