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| Allan Hills 82135 | |||||||||||||||||||||||||
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| Basic information | Name: Allan Hills 82135 This is an OFFICIAL meteorite name. Abbreviation: ALH 82135 Observed fall: No Year found: 1982 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  12.1 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 128 approved meteorites classified as CK4. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites | ||||||||||||||||||||||||
| Writeup |
Writeup from AMN 7(2):
Sample No.: ALH82135 Location: Allan Hills Field No.: 2973 Weight (gms): 12.1 Meteorite Type: C4 Chondrite
Physical Description: Roberta Score Black fusion crust covers most of this triangular shaped stone. When ALH82135 was broken, a massive, dark bluish-gray colored matrix was exposed. Some oxidation is present. Dimensions: 3 x 2.5 x 1 cm
Petrographic Description: Brian Mason The section consists largely of finely granular olivine (grains ranging up to 0.1 mm), with a little pyroxene, plagioclase, and opaques (largely magnetite). A few chondrules, made up of coarser-grained olivine, are present. Microprobe analyses give the following compositions: olivine, Fa27 (a few grains have higher Fa values); pyroxene, Fs25; plagioclase, An53. This meteorite is similar to Karoonda and PCA82500 in texture and mineral compositions and is tenatively classified as a C4 chondrite. | ||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 874: |
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| References: | Published in Antarctic Meteorite Newsletter 7(2) (1984), 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 44547 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
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| Revision history: |
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