Potter meteorite, Cheyenne Co., Nebraska, USAi
| Regional Level Types | |
|---|---|
| Potter meteorite | Meteorite Fall Location |
| Cheyenne Co. | County |
| Nebraska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
41° 13' 59'' North , 103° 18' 0'' West
Latitude & Longitude (decimal):
Locality type:
Meteorite Class:
Meteoritical Society Class:
KΓΆppen climate type:
Ordinary chondrite, brecciated (L6,br)
Find, 1941; 261 kg
After being struck by a plow a large number of meteorite fragments were recovered. Lying close together on a hillside, it is not possible to separate possible fragmentation upon impact from the influence of terrestrial weathering. Inspections reveal indistinct chondrules within a largely equilibrated, but brecciated grayish matrix. Prominent veins, especially, appear to be products of both preterrestrial shocks and subsequent terrestrial weathering. Compositionally, equilibrated olivine (Fa23) and low Ca-orthopyroxene ('hypersthene') are characteristic of the L-chondrite geochemical group. Mineralogically, the meteorite consists primarily of dominant olivine accompanied by pyroxene along with minor troilite and Fe-Ni metal. Much of the kamacite has been altered or removed by weathering. Accessory chromite and ilmenite have also been reported.
The main mass is at the at Field Museum of Natural History in Chicago. Another large mass is also found at ASU's Center for Meteorite Studies in Tempe (45.179 kg in 2017). The Bushnell (H4, 1939 find) and Dix (L6, 1927 find) were also found in nearby counties largely in response to the recovery efforts of Harvey H. Nininger during those years.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
4 valid minerals.
Meteorite/Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| β Chromite Formula: Fe2+Cr3+2O4 Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages. |
| β 'Fayalite-Forsterite Series' Description: Composition [Fayalite 23 mol%], Mason (1963). Reference: Mason, B. (1963) Olivine in ordinary chondrites. Geochimica et Cosmochimica Acta 27(9): 1011-1023. (Sept 1963).; Graham, A. L., Bevan, A. W. R. & Hutchison, B. (1985) Catalogue of Meteorites (4/e). University of Arizona Press: Tucson. |
| β Ilmenite Formula: Fe2+TiO3 Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages. |
| β Iron Formula: Fe Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages. |
| β Iron var. Kamacite Formula: (Fe,Ni) Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages. |
| β 'Limonite' Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages. |
| β 'Orthopyroxene Subgroup' Description: Orthopyroxene composition ('hypersthene') characteristic of L chondrites. Reference: Graham, A. L., Bevan, A. W. R. & Hutchison, B. (1985) Catalogue of Meteorites (4/e). University of Arizona Press: Tucson. |
| β Troilite Formula: FeS Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| β | Iron | 1.AE.05 | Fe |
| β | var. Kamacite | 1.AE.05 | (Fe,Ni) |
| Group 2 - Sulphides and Sulfosalts | |||
| β | Troilite | 2.CC.10 | FeS |
| Group 4 - Oxides and Hydroxides | |||
| β | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
| β | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| Unclassified Minerals, Rocks, etc. | |||
| β | 'Fayalite-Forsterite Series' | - | |
| β | 'Limonite' | - | |
| β | 'Orthopyroxene Subgroup' | - | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | β Chromite | Fe2+Cr23+O4 |
| O | β Ilmenite | Fe2+TiO3 |
| S | Sulfur | |
| S | β Troilite | FeS |
| Ti | Titanium | |
| Ti | β Ilmenite | Fe2+TiO3 |
| Cr | Chromium | |
| Cr | β Chromite | Fe2+Cr23+O4 |
| Fe | Iron | |
| Fe | β Chromite | Fe2+Cr23+O4 |
| Fe | β Ilmenite | Fe2+TiO3 |
| Fe | β Iron var. Kamacite | (Fe,Ni) |
| Fe | β Troilite | FeS |
| Fe | β Iron | Fe |
| Ni | Nickel | |
| Ni | β Iron var. Kamacite | (Fe,Ni) |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Mason, B. (1963) Olivine in ordinary chondrites. Geochimica et Cosmochimica Acta 27(9): 1011-1023. (Sept 1963).
Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.
Graham, A. L., Bevan, A. W. R. & Hutchison, B. (1985) Catalogue of Meteorites (4/e). University of Arizona Press: Tucson.
Grady, M.M. (2000). Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge; New York; Oakleigh; Madrid; Cape Town. 689 pages.
External Links
http://www.lpi.usra.edu/meteor/metbull.php - MeteoriticalBulletinDatabase
http://www.lpi.usra.edu/meteor/metbull.php?code=18878 - Potter@MetBullDatabase
http://www.lpi.usra.edu/meteor/metbull.php?code=18878 - Potter@MetBullDatabase
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Denver BasinBasin
- Great Plains DomainDomain
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