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Dominion Range 85505 | |||||||||||||||||||||
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Basic information | Name: Dominion Range 85505 This is an OFFICIAL meteorite name. Abbreviation: DOM 85505 Observed fall: No Year found: 1985 or 1986 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 31.4 g | ||||||||||||||||||||
Classification history: |
This is 1 of 3298 approved meteorites (plus 1 unapproved name) classified as LL5. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||
Writeup |
Writeup from AMN 10(2):
Sample No.: DOM85505; DOM85506 Location: Dominion Range Weight (g): 31.4; 58.8 Field No.: 2093; 2016 Dimensions (cm): 3 x 2 x 2; 4.5 x 2.5 x 2.5 Meteorite Type: LL5 Chondrite with Enclave
Macroscopic Description: Roberta Score Both specimens are angular and are nearly complete stones. Cleaving DOM85505 revealed an interior which is medium gray in color that contains enclaves of whitish-gray material. Gray and white clasts are abundant. The interior of DOM85506 is less weathered than DOM85505 and has irregularly shaped white and gray clasts. The white clasts are as large as 1 cm in largest dimension.
Thin Section (DOM85505.3) Description: Brian Mason The section shows sparse chondrules in a matrix of fine-grained olivine and pyroxene, with a little nickel-iron and sulfide. On one edge is a clast, 6 mm across, of large pyroxene grains poikilitically enclosing numerous small olivine grains. Minor weathering is indicated by brown limonitic staining around metal grains. Microprobe analyses show the following compositions: chondritic olivine Fa26, pyroxene Fs22; clast olivine Fa26, pyroxene Fs23. The meteorite is classified as an LL5 chondrite, but the large clast is an unusual feature. DOM85506 is so similar that it can certainly be paired with DOM85505. | ||||||||||||||||||||
Data from: MB76 Table 2 Line 1423: |
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Catalogs: |
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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: |
Statistics: This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||||||
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Revision history: |
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