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| Allan Hills 83017 | |||||||||||||||||||||
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| Basic information | Name: Allan Hills 83017 This is an OFFICIAL meteorite name. Abbreviation: ALH 83017 Observed fall: No Year found: 1983 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  0.6 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 95 approved meteorites classified as L3.5. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||
| Writeup |
Writeup from AMN 10(2):
Sample No.: ALH83017 Location: Allan Hills Weight (g): 0.6 Field No.: 2127 Dimensions (cm): 1 x 0.8 x 0.3 cm Meteorite Type: L3 Chondrite
Macroscopic Description: Carol Schwarz This tiny specimen is totally covered with fusion crust which is bubbly on one surface. The entire chip was used to make a thin section.
Thin Section (,1) Description: Brian Mason Chondrules and chondrule fragments are abundant, ranging up to 1.8 mm across; most are granular or porphyritic olivine and olivine-pyroxene, but barred olivine and fine-grained pyroxene chondrules are also present. Nickel-iron and sulfide are present in minor amounts. The section is completely surrounded by fusion crust. Microprobe analyses show olivine ranging in composition from Fa0.8 to Fa28, with a mean of Fa19 (CV FeO is 50); pyroxene composition ranges from Fs4 to Fs20. The meteorite is an L3 chondrite (probably L3.5). | ||||||||||||||||||||
| Data from: MB76 Table 2 Line 900: |
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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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Statistics: This is 1 of 40719 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||||||||||
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