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Norton County meteorite, Norton County, Kansas, USAi
| Regional Level Types | |
|---|---|
| Norton County meteorite | Meteorite Fall Location |
| Norton County | County |
| Kansas | State |
| USA | Country |
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Latitude & Longitude (WGS84):
39° 40' 59'' North , 99° 52' 0'' West
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Lenora | 240 (2017) | 14.2km |
| Norton | 2,841 (2017) | 16.9km |
| Logan | 554 (2017) | 25.5km |
| Almena | 394 (2017) | 26.9km |
| Prairie View | 128 (2017) | 30.1km |
Aubrite, brecciated (aubrite, br; S1-S4)
Fall, 18 February 1948; 1.1 ton
The largest of the 9 witnessed aubrite falls (enstatite achondrites). On 18 February 1948, the meteor fireball was seen over a large area. 7 stones were recovered. However, the largest mass (~1 ton) was not located until May. Virtually all of the original constituents of Norton County, like all aubrites, were formed in an utterly reducing environment, and as the largest aubrite — its mineralogy has been subject to intense scrutiny. Its chemical, mineralogical, and isotopic composition have been studied at all levels. Its pyroxene and sulfide components formed in an extremely reduced environment, especially, have been subject to intense scrutiny.
Norton County, like most aubrite falls, has experienced extensive brecciation followed by uneven re-equilibration with quite variable shock levels in both olivine (S1-S4) and enstatite (S1-S3).
A caveat. Gypsum, manganite, some carbonates and two new minerals (cronusite and schöllhornite) appear to be products of the large mass's 3-month exposure to 'the elements', i.e. weathering products.
Fall, 18 February 1948; 1.1 ton
The largest of the 9 witnessed aubrite falls (enstatite achondrites). On 18 February 1948, the meteor fireball was seen over a large area. 7 stones were recovered. However, the largest mass (~1 ton) was not located until May. Virtually all of the original constituents of Norton County, like all aubrites, were formed in an utterly reducing environment, and as the largest aubrite — its mineralogy has been subject to intense scrutiny. Its chemical, mineralogical, and isotopic composition have been studied at all levels. Its pyroxene and sulfide components formed in an extremely reduced environment, especially, have been subject to intense scrutiny.
Norton County, like most aubrite falls, has experienced extensive brecciation followed by uneven re-equilibration with quite variable shock levels in both olivine (S1-S4) and enstatite (S1-S3).
A caveat. Gypsum, manganite, some carbonates and two new minerals (cronusite and schöllhornite) appear to be products of the large mass's 3-month exposure to 'the elements', i.e. weathering products.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
26 valid minerals. 4 (TL) - type locality of valid minerals.
Meteorite/Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Alabandite Formula: MnS |
| ⓘ Anorthite Formula: Ca(Al2Si2O8) |
| ⓘ Brezinaite Formula: Cr3S4 |
| ⓘ Carletonmooreite (TL) Formula: Ni3Si Type Locality: |
| ⓘ Caswellsilverite (TL) Formula: NaCrS2 Type Locality: References: |
| ⓘ Clinoenstatite Formula: MgSiO3 |
| ⓘ Cronusite (TL) Formula: Ca0.2CrS2 · 2 H2O Type Locality: |
| ⓘ Cubanite Formula: CuFe2S3 |
| ⓘ Daubréelite Formula: Fe2+Cr3+2S4 |
| ⓘ Diopside Formula: CaMgSi2O6 |
| ⓘ Enstatite Formula: Mg2Si2O6 |
| ⓘ Forsterite Formula: Mg2(SiO4) Description: Olivine composition (Fa0.01) corresponds to nearly pure forsterite.
References: Keil, Klaus, Fredriksson, Kurt (1963) Electron microprobe analysis of some rare minerals in the Norton County achondrite. Geochimica et Cosmochimica Acta, 27 (9) 939-947 doi:10.1016/0016-7037(63)90103-0 |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ⓘ Manganite Formula: Mn3+O(OH) |
| ⓘ Native Copper Formula: Cu |
| ⓘ Native Iron Formula: Fe |
| ⓘ Native Iron var. Kamacite Formula: (Fe,Ni) |
| ⓘ Niningerite Formula: MgS |
| ⓘ Oldhamite Formula: CaS References: |
| ⓘ Perryite Formula: (Ni,Fe)5(Si,P)2 References: |
| ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 References: |
| ⓘ Schöllhornite (TL) Formula: Na0.3CrS2 · H2O Type Locality: References: |
| ⓘ Schreibersite Formula: (Fe,Ni)3P |
| ⓘ 'Silica' |
| ⓘ Spinel Formula: MgAl2O4 |
| ⓘ Taenite Formula: (Ni,Fe) |
| ⓘ Tetrataenite Formula: FeNi |
| ⓘ Tridymite Formula: SiO2 |
| ⓘ Troilite Formula: FeS |
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| ⓘ | Native Iron | 1.AE.05 | Fe |
| ⓘ | var. Kamacite | 1.AE.05 | (Fe,Ni) |
| ⓘ | Taenite | 1.AE.10 | (Ni,Fe) |
| ⓘ | Tetrataenite | 1.AE.10 | FeNi |
| ⓘ | Perryite | 1.BB.10 | (Ni,Fe)5(Si,P)2 |
| ⓘ | Carletonmooreite (TL) | 1.BB.45 | Ni3Si |
| ⓘ | Schreibersite | 1.BD.05 | (Fe,Ni)3P |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Cubanite | 2.CB.55a | CuFe2S3 |
| ⓘ | Troilite | 2.CC.10 | FeS |
| ⓘ | Alabandite | 2.CD.10 | MnS |
| ⓘ | Niningerite | 2.CD.10 | MgS |
| ⓘ | Oldhamite | 2.CD.10 | CaS |
| ⓘ | Daubréelite | 2.DA.05 | Fe2+Cr3+2S4 |
| ⓘ | Brezinaite | 2.DA.15 | Cr3S4 |
| ⓘ | Caswellsilverite (TL) | 2.FB.05 | NaCrS2 |
| ⓘ | Schöllhornite (TL) | 2.FB.05 | Na0.3CrS2 · H2O |
| ⓘ | Cronusite (TL) | 2.FB.05 | Ca0.2CrS2 · 2 H2O |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Spinel | 4.BB.05 | MgAl2O4 |
| ⓘ | Tridymite | 4.DA.10 | SiO2 |
| ⓘ | Manganite | 4.FD.15 | Mn3+O(OH) |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| Group 9 - Silicates | |||
| ⓘ | Forsterite | 9.AC.05 | Mg2(SiO4) |
| ⓘ | Enstatite | 9.DA.05 | Mg2Si2O6 |
| ⓘ | Clinoenstatite | 9.DA.10 | MgSiO3 |
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| ⓘ | Anorthite | 9.FA.35 | Ca(Al2Si2O8) |
| Unclassified | |||
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
| ⓘ | 'Silica' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Manganite | Mn3+O(OH) |
| H | ⓘ Schöllhornite | Na0.3CrS2 · H2O |
| H | ⓘ Cronusite | Ca0.2CrS2 · 2 H2O |
| O | Oxygen | |
| O | ⓘ Anorthite | Ca(Al2Si2O8) |
| O | ⓘ Clinoenstatite | MgSiO3 |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Enstatite | Mg2Si2O6 |
| O | ⓘ Forsterite | Mg2(SiO4) |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Manganite | Mn3+O(OH) |
| O | ⓘ Spinel | MgAl2O4 |
| O | ⓘ Schöllhornite | Na0.3CrS2 · H2O |
| O | ⓘ Tridymite | SiO2 |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| O | ⓘ Cronusite | Ca0.2CrS2 · 2 H2O |
| Na | Sodium | |
| Na | ⓘ Caswellsilverite | NaCrS2 |
| Na | ⓘ Schöllhornite | Na0.3CrS2 · H2O |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Mg | Magnesium | |
| Mg | ⓘ Clinoenstatite | MgSiO3 |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Mg | ⓘ Enstatite | Mg2Si2O6 |
| Mg | ⓘ Forsterite | Mg2(SiO4) |
| Mg | ⓘ Niningerite | MgS |
| Mg | ⓘ Spinel | MgAl2O4 |
| Al | Aluminium | |
| Al | ⓘ Anorthite | Ca(Al2Si2O8) |
| Al | ⓘ Spinel | MgAl2O4 |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | Silicon | |
| Si | ⓘ Anorthite | Ca(Al2Si2O8) |
| Si | ⓘ Clinoenstatite | MgSiO3 |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Enstatite | Mg2Si2O6 |
| Si | ⓘ Forsterite | Mg2(SiO4) |
| Si | ⓘ Perryite | (Ni,Fe)5(Si,P)2 |
| Si | ⓘ Tridymite | SiO2 |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | ⓘ Carletonmooreite | Ni3Si |
| P | Phosphorus | |
| P | ⓘ Perryite | (Ni,Fe)5(Si,P)2 |
| P | ⓘ Schreibersite | (Fe,Ni)3P |
| S | Sulfur | |
| S | ⓘ Alabandite | MnS |
| S | ⓘ Brezinaite | Cr3S4 |
| S | ⓘ Caswellsilverite | NaCrS2 |
| S | ⓘ Cubanite | CuFe2S3 |
| S | ⓘ Daubréelite | Fe2+Cr23+S4 |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Niningerite | MgS |
| S | ⓘ Oldhamite | CaS |
| S | ⓘ Schöllhornite | Na0.3CrS2 · H2O |
| S | ⓘ Troilite | FeS |
| S | ⓘ Cronusite | Ca0.2CrS2 · 2 H2O |
| Ca | Calcium | |
| Ca | ⓘ Anorthite | Ca(Al2Si2O8) |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | ⓘ Oldhamite | CaS |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ca | ⓘ Cronusite | Ca0.2CrS2 · 2 H2O |
| Cr | Chromium | |
| Cr | ⓘ Brezinaite | Cr3S4 |
| Cr | ⓘ Caswellsilverite | NaCrS2 |
| Cr | ⓘ Daubréelite | Fe2+Cr23+S4 |
| Cr | ⓘ Schöllhornite | Na0.3CrS2 · H2O |
| Cr | ⓘ Cronusite | Ca0.2CrS2 · 2 H2O |
| Mn | Manganese | |
| Mn | ⓘ Alabandite | MnS |
| Mn | ⓘ Manganite | Mn3+O(OH) |
| Fe | Iron | |
| Fe | ⓘ Cubanite | CuFe2S3 |
| Fe | ⓘ Daubréelite | Fe2+Cr23+S4 |
| Fe | ⓘ Native Iron | Fe |
| Fe | ⓘ Native Iron var. Kamacite | (Fe,Ni) |
| Fe | ⓘ Perryite | (Ni,Fe)5(Si,P)2 |
| Fe | ⓘ Schreibersite | (Fe,Ni)3P |
| Fe | ⓘ Taenite | (Ni,Fe) |
| Fe | ⓘ Tetrataenite | FeNi |
| Fe | ⓘ Troilite | FeS |
| Ni | Nickel | |
| Ni | ⓘ Native Iron var. Kamacite | (Fe,Ni) |
| Ni | ⓘ Perryite | (Ni,Fe)5(Si,P)2 |
| Ni | ⓘ Schreibersite | (Fe,Ni)3P |
| Ni | ⓘ Taenite | (Ni,Fe) |
| Ni | ⓘ Tetrataenite | FeNi |
| Ni | ⓘ Carletonmooreite | Ni3Si |
| Cu | Copper | |
| Cu | ⓘ Cubanite | CuFe2S3 |
| Cu | ⓘ Native Copper | Cu |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Great Plains DomainDomain
- Yavapai TerraneVolcanic Arc
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References
Keil, Klaus, Fredriksson, Kurt (1963) Electron microprobe analysis of some rare minerals in the Norton County achondrite. Geochimica et Cosmochimica Acta, 27 (9) 939-947 doi:10.1016/0016-7037(63)90103-0
Britvin, S. N., Guo, X. Y., Kolomensky, V. D., Boldyreva, M. M., Kretser, Yu.L., Yagovinka, M. A. (2001) Cronusite, Ca0.2(H2O)2CrS2, a new mineral from the Norton County enstatite achondrite. Zapiski Vserossijskogo Mineralogicheskogo Obshchestva, 130 (3) 29-36
Keil, Klaus (2010) Enstatite achondrite meteorites (aubrites) and the histories of their asteroidal parent bodies. Geochemistry, 70 (4) 295-317 doi:10.1016/j.chemer.2010.02.002
Norton County meteorite, Norton County, Kansas, USA