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| Allan Hills A79016 | |||||||||||||||||||||
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| Basic information | Name: Allan Hills A79016 This is an OFFICIAL meteorite name. Abbreviation: ALHA79016 This meteorite may also be called Allan Hills 79016 (ALH 79016) in publications. Observed fall: No Year found: 1979 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass:  1146 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 6170 approved meteorites (plus 5 unapproved names) classified as H6. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||
| Writeup |
Writeup from AMN 4(1):
Sample No.: ALHA79016 Location: Allan Hills Field No.: 1057 Weight (gms): 1146.0 Meteorite Type: H6 Chondrite
Physical Description: Carol Schwarz Sample is mostly covered with black fusion crust including two surfaces that once were fracture surfaces. Shallow regmaglypts exist on several faces. Several cracks penetrate the interior. Chipping revealed a 1 to 3 cm thick dark reddish brown weathering rind. The rest of the interior material is not as severely weathered as the weathering rind, it has a yellowish color and is quite friable. Metal flecks are visible. Dimensions: 13 x 8 x 6.5 cm.
Petrographic Description: Brian Mason Chondrules are sparse and poorly defined, tending to merge with the granular groundmass, which consists mainly of olivine and pyroxene, with minor amounts of nickel-iron, sodic plagioclase, and troilite, and accessory chromite. A vein of nickel-iron up to 0.5 mm thick traverses the section. Microprobe analyses show olivine (Fa17), orthopyroxene (Fs15), and plagioclase (An13) of uniform composition; accessory merrillite was identified with the microprobe. The meteorite is classified as an H6 chondrite. | ||||||||||||||||||||
| Data from: MB76 Table 2 Line 454: |
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| References: | Published in Antarctic Meteorite Newsletter 4(1) (1981), 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 40744 approved meteorites from Antarctica (plus 4494 unapproved names) | ||||||||||||||||||||
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