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Robbers Roost | |||||||||||||||||||||||||||||||||||||||
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Basic information | Name: Robbers Roost This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2020 Country: United States Mass: ![]() | ||||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 6340 approved meteorites (plus 2 unapproved names) classified as H4. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||||
Comments: | Approved 18 Sep 2021 | ||||||||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 110:
Robbers Roost 35°33.30’N, 118°1.6’W California, United States Find: 2020 June 06 Classification: Ordinary chondrite (H4) History: On 2020 June 6, a 161 g stone was found by Louis Cornell while he and his work-team were transplanting chaparral bushes for the Bureau of Land Management in Kern County. Physical characteristics: A lightly weathered, brown stone. A 6-sided rectangular, nearly whole-individual, having two thumbprint-shaped regmaglypts, with only one hackly side missing fusion-crust, but having one obvious chondrule sticking-out in high relief. Petrography: (D. Sheikh, FSU) Sample is an ordinary chondrite containing chondrules (Av. 500±50µm), Fe-Ni metal, troilite, and merrillite. Geochemistry: Olivine (Fa19.6±0.8, range Fa18.3-21.8, n=23), Low-Ca Pyroxene (Fs16.7±0.6Wo1.3±0.2, range Fs15.9-17.9Wo0.9-1.5, n=16). Classification: Ordinary Chondrite (H4) Specimens: 20 g and a thin section at UCLA; main mass with Verish. | ||||||||||||||||||||||||||||||||||||||
Data from: MB110 Table 0 Line 0: |
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Institutions and collections |
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011) FSU: Department of Geological Sciences, Florida State University, Tallahassee FL 32306-4100, United States (institutional address; updated 16 Dec 2010) Verish: Robert Verish, Meteorite-Recovery Lab, P.O. Box 463084, Escondido, CA 92046, United States; Website (private address; updated 27 May 2009) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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Photos: |
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Geography:![]() |
Statistics: This is 1 of 268 approved meteorites from California, United States (plus 24 unapproved names) This is 1 of 1885 approved meteorites from United States (plus 890 unapproved names) (plus 28 impact craters) | ||||||||||||||||||||||||||||||||||||||
Proximity search: |