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| Allan Hills 85106 | |||||||||||||||||||||||||
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| Basic information | Name: Allan Hills 85106 This is an OFFICIAL meteorite name. Abbreviation: ALH 85106 Observed fall: No Year found: 1985 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  2.7 g | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 622 approved meteorites classified as CM2. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites | ||||||||||||||||||||||||
| Writeup |
Writeup from AMN 10(2):
Sample No.: ALH85106 Location: Allan Hills Weight (g): 2.7 Field No.: 2650 Dimensions (cm): 1.5 x 1.5 x 1.5 Meteorite Type: C2 Chondrite
Macroscopic Description: Roberta Score The overall color of this weathered carbonaceous chondrite is greenish-gray. This greenish weathering extends 2 mm into the interior. The core of this stone is black and contains small white inclusions.
Thin Section (,2) Description: Brian Mason The section shows silicate grains, irregular aggregates, and rare chondrules in a translucent to opaque matrix. Nickel-iron and sulfide are present in trace amounts. Microprobe analyses show olivine of variable composition - many grains are near Fa1, but the range is Fa0.3-30; pyroxene is rare. The meteorite is a C2 chondrite. | ||||||||||||||||||||||||
| Data from: MB76 Table 2 Line 1335: |
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| References: | Published in Antarctic Meteorite Newsletter 10(2) (1987), 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 43856 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||||||
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