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| High Island Creek | |||||||||||||||||||||||||||||||||
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| Basic information | Name: High Island Creek This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2011 Country: United States Mass:  15 kg | ||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 343 approved meteorites classified as Iron, IIIAB. [show all] Search for other: IIIAB irons, Iron meteorites, and Metal-rich meteorites | ||||||||||||||||||||||||||||||||
| Comments: | Approved 24 May 2015 | ||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 104:
High Island Creek 44°35.763’N, 94°01.809’W Minnesota, United States Find: 2011 Apr Classification: Iron meteorite (IIIAB) History: Plowed up in April 2011 by Bruce Lilienthal on his farm east of Arlington, Minn. Recognized immediately as "unusual" and separated from other glacial erratics. In May 2013, the Lilienthals contacted E. Calvin Alexander, Jr., at the University of Minnesota. Alexander identified the object as an iron meteorite based on its Ni content and micro-structure. Object purchased by Alexander in Feb 2014. Samples sent to Wasson for classification. Physical characteristics: Thick, oval, highly flattened shape meteorite, 41 × 28 × 4c m. Bulk density = 7.23 g/cc. Rusty orange surface with 2-3 cm darker spots on surface. Similar shape to Arlington which was found 3.4 km to the northwest. Petrography: Structure is Om, typical of a IIIAB. Moderate weathering near the surface. Geochemistry: Composition: Co, 5.10 mg/g; Ni, 78.6 mg/g; Ga, 21.2 μg/g; Ge, <50 μg/g; As, 5.42 μg/g; Ir 2.25 μg/g; Au, 0.727 μg/g. The meteorite is compositionally a member of IIIAB. The only closely similar IIIAB is al-Ghanim (iron). No other iron has both a Au value within 5% and an Ir value within 10% of this composition. Classification: Iron, IIIAB based on composition and structure. Specimens: 1518 g at UCLA, 12077 g at UMin | ||||||||||||||||||||||||||||||||
| Data from: MB104 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) UMin: Department of Earth and Environmental Sciences John T. Tate Hall 116 Church St SE University of Minnesota 116 Church St SE Minneapolis, MN 55455, United States; Website (institutional address; updated 28 Mar 2024) |
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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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Geography:
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Statistics: This is 1 of 9 approved meteorites from Minnesota, United States This is 1 of 1927 approved meteorites from United States (plus 866 unapproved names) (plus 28 impact craters) | ||||||||||||||||||||||||||||||||
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| Revision history: |
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