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Mount Marion | |||||||||||||||||||||||||||||||||||||||
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Basic information | Name: Mount Marion This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2010 Country: Australia Mass: 38.3 g | ||||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 11568 approved meteorites (plus 23 unapproved names) classified as H5. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||||
Comments: | Approved 16 Dec 2020 | ||||||||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Mount Marion 31°5’53"S, 121°28’42"E Western Australia, Australia Find: 2010 Sept Classification: Ordinary chondrite (H5) History: A single stone of 38.3 g was found at a depth of 12" in an alluvial wash by a person with a metal detector. Physical characteristics: Physical characterisitics: A completely crusted stone. Petrography: (A. W. R. Bevan, WAM) Discernable chondrules are set in a moderately crystalline matrix. Chondrule mesostases are devitrified to microcrystalline. Olivine shows undulose extinction to mosaicism and abundant planar fractures. The fabric of the meteorite is pervaded by black shock veins with melted troilite and metal droplets. Geochemistry: Mineral compositions and geochemistry: (P. Downes, WAM) Mineral compositions as determined by EMP: olivine Fa19.1; orthopyroxene Fs16.8Wo1.12; chromite #Cr 86.0; kamacite (average n=7) Ni 6.85%, Co 0.46%. Petrographically and mineralogically similar to Lake Gwynne found 63.8 km away. Classification: (H5); S4: W1. Specimens: Type specimen 12.65 g, cut slices 11.45 and 10.86 g, and thin section at WAM. | ||||||||||||||||||||||||||||||||||||||
Data from: MB109 Table 0 Line 0: |
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Institutions and collections |
WAM: Department of Earth & Planetary Sciences, Western Australian Museum. Locked Bag 49, Welshpool DC, Western Australia 6986, Australia; Website (institutional address; updated 18 Oct 2011) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography: |
Statistics: This is 1 of 348 approved meteorites from Western Australia, Australia (plus 1 unapproved name) (plus 11 impact craters) This is 1 of 719 approved meteorites from Australia (plus 11 unapproved names) (plus 27 impact craters) | ||||||||||||||||||||||||||||||||||||||
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Revision history: |
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