Pallasite meteorite
A meteorite classification type
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About Pallasite meteorite
Name:
Named after the naturalist Peter Simon Pallas (1741-1811), who studied the Krasnoyarsk meteorite, the first meteorite of this type ever found.
A stony-iron meteorite composed essentially of large single glassy crystals of olivine (forsterite) embedded in a network of nickel-iron, with accessory troilite, chromite, phosphide, various phosphate minerals, and sometimes pyroxene. Pallasites are believed to have been formed at the interface of the stony mantle and metal core of layered planetoids.
For a long time, pallasites have been divided into two groups, Main Group (MGP) and the Eagle Station grouplet (PES), based on their oxygen isotopic signatures and forsterite compositions. However, with the new millennium came not only new pallasite samples, but new pallasite subtypes. Thus, in only a few years, the number of pallasite parent bodies has increased from two to five isotopically and/or mineralogically distinct objects, with Scott (2007) suggesting as many as seven.
For a long time, pallasites have been divided into two groups, Main Group (MGP) and the Eagle Station grouplet (PES), based on their oxygen isotopic signatures and forsterite compositions. However, with the new millennium came not only new pallasite samples, but new pallasite subtypes. Thus, in only a few years, the number of pallasite parent bodies has increased from two to five isotopically and/or mineralogically distinct objects, with Scott (2007) suggesting as many as seven.
Meteoritical Society Code: Pallasite
Unique Identifiers
Mindat ID:
49898
Long-form identifier:
mindat:1:1:49898:2
Classification of Pallasite meteorite
- Rock
- Meteorite and other extra-terrestrial rock and sediment
- Meteorite
- Differentiated achondrite meteorite
- Pallasite meteorite
- Stony-iron meteorite
- Pallasite meteorite
- Differentiated achondrite meteorite
- Meteorite
- Meteorite and other extra-terrestrial rock and sediment
Sub-divisions of Pallasite meteorite
Mineralogy of Pallasite meteorite
Essential minerals - these are minerals that are required within the classification of this rock:
| Meteoritic Iron | Iron found as a constituent of meteorites. |
| Olivine > Forsterite | Mg2(SiO4) |
Pronunciation of Pallasite meteorite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Synonyms of Pallasite meteorite
Common Associates
Associations Based on Photo Data:
| 1 photo of Pallasite meteorite associated with 'IIE iron meteorite' | |
| 1 photo of Pallasite meteorite associated with 'Peridot' | Mg2SiO4 |
Internet Links for Pallasite meteorite
mindat.org URL:
https://www.mindat.org/min-49898.html
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References for Pallasite meteorite
Reference List:
Buseck, Peter R (1977) Pallasite meteorites—mineralogy, petrology and geochemistry. Geochimica et Cosmochimica Acta, 41 (6) 711-740 doi:10.1016/0016-7037(77)90044-8
Scott, Edward R.D (1977) Pallasites—metal composition, classification and relationships with iron meteorites. Geochimica et Cosmochimica Acta, 41 (3) 349-360 doi:10.1016/0016-7037(77)90262-9
McKibbin, Seann J., Pittarello, Lidia, Makarona, Christina, Hamann, Christopher, Hecht, Lutz, Chernonozhkin, Stepan M., Goderis, Steven, Claeys, Philippe (2019) Petrogenesis of main group pallasite meteorites based on relationships among texture, mineralogy, and geochemistry. Meteoritics & Planetary Science, 54 (11) 2814-2844 doi:10.1111/maps.13392
Recorded finds for Pallasite meteorite
Showing 41 recorded finds.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Antarctica | |
| [PMG pallasite meteorite] - (2010) |
| - (2010) |
Argentina | |
| [PMG pallasite meteorite] - (2010) |
Australia | |
| [PMG pallasite meteorite] - (2010) |
| Tchirvinsky (1919) +4 other references |
| [Anomalous PMG pallasite meteorite] - (2010) |
Belarus | |
| [PMG pallasite meteorite] - (2010) |
Bolivia | |
| - (2010) |
Brazil | |
| [PMG pallasite meteorite] - (2010) |
Canada | |
| [PMG pallasite meteorite] - (2010) |
| [Anomalous PMG pallasite meteorite] - (2010) |
Chile | |
| [PMG pallasite meteorite] - (2010) |
China | |
| [PMG pallasite meteorite] - (2010) |
France | |
| Ramdohr (1972) |
Germany | |
| - (2010) |
Italy | |
| [PMG pallasite meteorite] - (2010) |
| [PMG pallasite meteorite] - (2010) |
Japan | |
| [Anomalous PMG pallasite meteorite] - (2010) |
Kenya | |
| - (2010) |
Mexico | |
| [PMG pallasite meteorite] Fuchs (1967) +1 other reference |
| [PMG pallasite meteorite] - (2010) |
Northwest Africa Meteorites | |
| [PMG pallasite meteorite] - (2010) | |
Norway | |
| [PMG pallasite meteorite] - (2010) |
Russia | |
| [Anomalous PMG pallasite meteorite] - (2010) |
| [PMG pallasite meteorite] - (2010) |
| [PMG pallasite meteorite] - (2010) |
| [PMG pallasite meteorite] - (2010) |
| [PMG pallasite meteorite] - (2010) |
| [PMG pallasite meteorite] - (2010) |
USA | |
| [PMG pallasite meteorite] Buseck (1968) +1 other reference |
| [Anomalous PMG pallasite meteorite] - (2010) |
| [PMG pallasite meteorite] - (2010) |
| [Ungrouped pallasite meteorite] - (2010) |
| [PES pallasite meteorite] - (2010) |
| [PMG pallasite meteorite] - (2010) |
| [Ungrouped pallasite meteorite] - (2010) |
| [Ungrouped pallasite meteorite] - (2010) |
| [PMG pallasite meteorite] - (2010) |
| [PMG pallasite meteorite] - (2010) |
| [Anomalous PMG pallasite meteorite] - (2010) |
| [PMG pallasite meteorite] - (2010) |
Choteau meteorite, Montana, USA