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| Yucca 031 | |||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Yucca 031 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2013 Country: United States Mass:  34.3 g | ||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 6825 approved meteorites (plus 6 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) | ||||||||||||||||||||||||||||||||||||
| Comments: | Approved 27 Mar 2015 | ||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 104:
Yucca 031 34°45’28.67"N, 114°15’29.38"W Arizona, United States Find: 2013 Dec 14 Classification: Ordinary chondrite (H6) History: A 34.3 g meteorite was found by Twink Monrad while she was hunting for Franconia meteorites with a metal detector. It was found at the top of a hill buried 18 cm deep in soft dirt. The stone appears to be oriented, as it is cone shaped with a slight rollover lip on the back side. Physical characteristics: Exterior of the stone is covered with brownish weathered fusion crust. The interior is brown with light-colored patches. It has an even distribution of fine metal and troilite grains, estimated 45 areal %. A few chondrules to 1 mm are visible. Petrography: The stone is largely recrystallized with sparse chondrules. A probe section shows several BO chondrules. Plagioclase grains up to 100 μm are abundant. Chromite is irregularly shaped, to 500 μm. Metal is dominated by irregularly shaped single-crystal kamacite grains to 0.7 mm, which lack shock features. Tetrataenite and plessite are rare. Troilite grains are single crystals and lack shock features. Kamacite/taenite grain boundaries are smooth. One 20 μm native Cu nugget was found. Weathering is minor. Geochemistry: (L. Garvie, ASU) Olivine Fa19.7±0.5, FeO/MnO=38.7±2.0, n=9; low Ca pyroxene Fs17.3±0.2Wo1.2±0.2, FeO/MnO=23.5±0.8, Cr2O3 = 0.11±0.05 wt%, n=12; high Ca pyroxene Fs6.2±0.5Wo45.5±1.6, FeO/MnO=18.5±1.0, Cr2O3 = 0.7±0.1 wt%, n=5; kamacite Ni=6.1?0.4 wt% and Co=0.5±0.0 wt%, n=6. Classification: Ordinary chondrite, H6, S1, W1 Specimens: 12.1 g at ASU. | ||||||||||||||||||||||||||||||||||||
| Data from: MB104 Table 0 Line 0: |
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| Institutions and collections |
ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012) |
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| References: | Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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| Photos: |
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Geography:
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Statistics: This is 1 of 179 approved meteorites from Arizona, United States (plus 1 impact crater) This is 1 of 1927 approved meteorites from United States (plus 866 unapproved names) (plus 28 impact craters) | ||||||||||||||||||||||||||||||||||||
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| Also see: |
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| Revision history: |
This lists important revisions made to data for this record.
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