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Norton County meteorite, Norton Co., Kansas, USA

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Key
Lock Map
Latitude & Longitude (WGS84): 39° 40' 59'' North , 99° 52' 0'' West
Latitude & Longitude (decimal): 39.68333,-99.86667
GeoHash:G#: 9z0cz2pk4
Locality type:Meteorite Fall Location
Meteorite Class:Aubrite meteorite
Meteoritical Society Class:Aubrite
Metbull:View entry in Meteoritical Bulletin Database
Köppen climate type:Dfa : Hot-summer humid continental climate


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.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


26 valid minerals. 4 (TL) - type locality of valid minerals.

Meteorite/Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Alabandite
Formula: MnS
Reference: Am Min 67:132-136; Klaus Keil, Kurt Fredriksson (1963) Electron microprobe analysis of some rare minerals in the Norton County achondrite. Geochimica et Cosmochimica Acta Volume 27, Issue 9, September 1963, Pages 939–942; Watters, T. R. & Prinz, M (1979) Aubrites - Their origin and relationship to enstatite chondrites. In: Lunar and Planetary Science Conference, 10th, Houston, Tex., March 19-23, 1979, Proceedings. Volume 1. (A80-23557 08-91) New York, Pergamon Press, Inc., 1979, p. 1073-1093.; Okada, A., Keil, K., Leonard, B. F., & Hutcheon, I. D. (1984). Schöllhornite, Na0. 3 (H2O) 1 [CrS2] a New Mineral in the Norton County Enstatite Achondrite. Meteoritics, 19, 284.
'Albite-Anorthite Series'
Reference: Watters, T. R. & Prinz, M (1979) Aubrites - Their origin and relationship to enstatite chondrites. In: Lunar and Planetary Science Conference, 10th, Houston, Tex., March 19-23, 1979, Proceedings. Volume 1. (A80-23557 08-91) New York, Pergamon Press, Inc., 1979, p. 1073-1093.
Anorthite
Formula: Ca(Al2Si2O8)
Reference: Lionel Wilson & Klaus Keil (1991). Consequences of explosive eruptions on small solar system bodies - The case of the missing basalts on the aubrite parent body. Earth and Planetary Science Letters, vol. 104, no. 2-4, 505-512.
'Aubrite meteorite'
Reference: Meteoritical Society Database; Okada, A., Keil, K., Leonard, B. F., & Hutcheon, I. D. (1984). Schöllhornite, Na0. 3 (H2O) 1 [CrS2] a New Mineral in the Norton County Enstatite Achondrite. Meteoritics, 19, 284.
Brezinaite
Formula: Cr3S4
Reference: Shkurenko, K. O.; Semenenko, V. P.; Gorovenko, T. M.; Slyvinsky, V. M. (2011). Fine Morphological Features of Mineral Grains in the Norton County Aubrite. Meteoritics & Planetary Science 46, Supplement, A212.
Carletonmooreite (TL)
Formula: Ni3Si
Reference: Ma, C., Garvie, L.A.J. and Wittmann, A. (2018) Carletonmooreite, IMA 2018-068. CNMNC Newsletter No. 45, October 2018: page xxx; Mineralogical Magazine: 82: xxx-xxx; http://forum.amiminerals.it/viewtopic.php?f=5&t=14984
Caswellsilverite (TL)
Formula: NaCrS2
Reference: Am Min 67:132-136; Okada, A., Keil, K., Leonard, B. F., & Hutcheon, I. D. (1984). Schöllhornite, Na0. 3 (H2O) 1 [CrS2] a New Mineral in the Norton County Enstatite Achondrite. Meteoritics, 19, 284.
Clinoenstatite
Formula: MgSiO3
Reference: Akihiko Okada, Klaus Keil & G. J. Taylor (1980). The Norton County enstatite achondrite: A brecciated, plutonic igneous rock. Abstracts of Papers Presented at the Forty-Third Annual Meeting of the Meteoritical Society. LPI Contribution 412, edited by Paula Criswell, published by the Lunar and Planetary Institute: Houston, p.170.
Copper
Formula: Cu
Reference: Klaus Keil, Kurt Fredriksson (1963) Electron microprobe analysis of some rare minerals in the Norton County achondrite. Geochimica et Cosmochimica Acta Volume 27, Issue 9, September 1963, Pages 939–942; Watters, T. R. & Prinz, M (1979) Aubrites - Their origin and relationship to enstatite chondrites. In: Lunar and Planetary Science Conference, 10th, Houston, Tex., March 19-23, 1979, Proceedings. Volume 1. (A80-23557 08-91) New York, Pergamon Press, Inc., 1979, p. 1073-1093.
Cronusite (TL)
Formula: Ca0.2CrS2 · 2 H2O
Reference: S.N. Britvin et al. (2001) Zap. Vser. Mineral. Obshch. 130/3, 29-36 (in russ.)
Cubanite
Formula: CuFe2S3
Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.
Daubréelite
Formula: Fe2+Cr3+2S4
Reference: Am Min 67:132-136; Klaus Keil, Kurt Fredriksson (1963) Electron microprobe analysis of some rare minerals in the Norton County achondrite. Geochimica et Cosmochimica Acta Volume 27, Issue 9, September 1963, Pages 939–942; Watters, T. R. & Prinz, M (1979) Aubrites - Their origin and relationship to enstatite chondrites. In: Lunar and Planetary Science Conference, 10th, Houston, Tex., March 19-23, 1979, Proceedings. Volume 1. (A80-23557 08-91) New York, Pergamon Press, Inc., 1979, p. 1073-1093.; Okada, A., Keil, K., Leonard, B. F., & Hutcheon, I. D. (1984). Schöllhornite, Na0. 3 (H2O) 1 [CrS2] a New Mineral in the Norton County Enstatite Achondrite. Meteoritics, 19, 284.
Diopside
Formula: CaMgSi2O6
Reference: Watters, T. R. & Prinz, M (1979) Aubrites - Their origin and relationship to enstatite chondrites. In: Lunar and Planetary Science Conference, 10th, Houston, Tex., March 19-23, 1979, Proceedings. Volume 1. (A80-23557 08-91) New York, Pergamon Press, Inc., 1979, p. 1073-1093.
Enstatite
Formula: MgSiO3
Reference: Am Min 67:132-136; Klaus Keil, Kurt Fredriksson (1963) Electron microprobe analysis of some rare minerals in the Norton County achondrite. Geochimica et Cosmochimica Acta Volume 27, Issue 9, September 1963, Pages 939–942; Watters, T. R. & Prinz, M (1979) Aubrites - Their origin and relationship to enstatite chondrites. In: Lunar and Planetary Science Conference, 10th, Houston, Tex., March 19-23, 1979, Proceedings. Volume 1. (A80-23557 08-91) New York, Pergamon Press, Inc., 1979, p. 1073-1093.
Forsterite
Formula: Mg2SiO4
Description: Olivine composition (Fa0.01) corresponds to nearly pure forsterite.
Reference: Klaus Keil, Kurt Fredriksson (1963) Electron microprobe analysis of some rare minerals in the Norton County achondrite. Geochimica et Cosmochimica Acta Volume 27, Issue 9, September 1963, Pages 939–942; Watters, T. R. & Prinz, M (1979) Aubrites - Their origin and relationship to enstatite chondrites. In: Lunar and Planetary Science Conference, 10th, Houston, Tex., March 19-23, 1979, Proceedings. Volume 1. (A80-23557 08-91) New York, Pergamon Press, Inc., 1979, p. 1073-1093.; Rubin, A. E. (2015). Shock and annealing in aubrites: Implications for parent-body history. Meteoritics & Planetary Science 50(7): 1217-1227. (July 2014).
Gypsum
Formula: CaSO4 · 2H2O
Reference: Shkurenko, K. O.; Semenenko, V. P.; Gorovenko, T. M.; Slyvinsky, V. M. (2011). Fine Morphological Features of Mineral Grains in the Norton County Aubrite. Meteoritics & Planetary Science 46, Supplement, A212.
Iron
Formula: Fe
Reference: Am Min 67:132-136; Klaus Keil, Kurt Fredriksson (1963) Electron microprobe analysis of some rare minerals in the Norton County achondrite. Geochimica et Cosmochimica Acta Volume 27, Issue 9, September 1963, Pages 939–942
Iron var: Kamacite
Formula: (Fe,Ni)
Reference: Am Min 67:132-136; Klaus Keil, Kurt Fredriksson (1963) Electron microprobe analysis of some rare minerals in the Norton County achondrite. Geochimica et Cosmochimica Acta Volume 27, Issue 9, September 1963, Pages 939–942; Okada, A., Keil, K., Leonard, B. F., & Hutcheon, I. D. (1984). Schöllhornite, Na0. 3 (H2O) 1 [CrS2] a New Mineral in the Norton County Enstatite Achondrite. Meteoritics, 19, 284.
Manganite
Formula: Mn3+O(OH)
Reference: Shkurenko, K. O.; Semenenko, V. P.; Gorovenko, T. M.; Slyvinsky, V. M. (2011). Fine Morphological Features of Mineral Grains in the Norton County Aubrite. Meteoritics & Planetary Science 46, Supplement, A212.
Niningerite
Formula: (Mg,Fe2+,Mn2+)S
Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.
Oldhamite
Formula: (Ca,Mg)S
Reference: Lunar and Planetary Science XXXII (2001); Okada, A., Keil, K., Leonard, B. F., & Hutcheon, I. D. (1984). Schöllhornite, Na0. 3 (H2O) 1 [CrS2] a New Mineral in the Norton County Enstatite Achondrite. Meteoritics, 19, 284.
Perryite
Formula: (Ni,Fe)5(Si,P)2
Reference: Am Min 67:132-136; Watters, T. R. & Prinz, M (1979) Aubrites - Their origin and relationship to enstatite chondrites. In: Lunar and Planetary Science Conference, 10th, Houston, Tex., March 19-23, 1979, Proceedings. Volume 1. (A80-23557 08-91) New York, Pergamon Press, Inc., 1979, p. 1073-1093.; Okada, A., Keil, K., Leonard, B. F., & Hutcheon, I. D. (1984). Schöllhornite, Na0. 3 (H2O) 1 [CrS2] a New Mineral in the Norton County Enstatite Achondrite. Meteoritics, 19, 284.
Schöllhornite (TL)
Formula: Na0.3CrS2 · H2O
Reference: Amer.Min.(1985) 70, 638-643; Okada, A., Keil, K., Leonard, B. F., & Hutcheon, I. D. (1984). Schöllhornite, Na0. 3 (H2O) 1 [CrS2] a New Mineral in the Norton County Enstatite Achondrite. Meteoritics, 19, 284.
Schreibersite
Formula: (Fe,Ni)3P
Reference: Watters, T. R. & Prinz, M (1979) Aubrites - Their origin and relationship to enstatite chondrites. In: Lunar and Planetary Science Conference, 10th, Houston, Tex., March 19-23, 1979, Proceedings. Volume 1. (A80-23557 08-91) New York, Pergamon Press, Inc., 1979, p. 1073-1093.
'Silica'
Reference: Lionel Wilson & Klaus Keil (1991). Consequences of explosive eruptions on small solar system bodies - The case of the missing basalts on the aubrite parent body. Earth and Planetary Science Letters, vol. 104, no. 2-4, 505-512.
Spinel
Formula: MgAl2O4
Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.
Taenite
Formula: (Fe,Ni)
Reference: Watters, T. R. & Prinz, M (1979) Aubrites - Their origin and relationship to enstatite chondrites. In: Lunar and Planetary Science Conference, 10th, Houston, Tex., March 19-23, 1979, Proceedings. Volume 1. (A80-23557 08-91) New York, Pergamon Press, Inc., 1979, p. 1073-1093.
Tetrataenite
Formula: FeNi
Reference: Mittlefehldt, D. W., McCoy, T. J., Goodrich, C. A. & Kracher, A. (1998) Non-chondritic meteorites from Asteroidal bodies. In: Planetary Materials (Papike, J. J., Editor): Chapter 4, 195 pages. Mineralogical Society of America: Washington, DC, USA.
Tridymite
Formula: SiO2
Reference: Akihiko Okada, Klaus Keil & G. J. Taylor (1980). The Norton County enstatite achondrite: A brecciated, plutonic igneous rock. Abstracts of Papers Presented at the Forty-Third Annual Meeting of the Meteoritical Society. LPI Contribution 412, edited by Paula Criswell, published by the Lunar and Planetary Institute: Houston, p.170.
Troilite
Formula: FeS
Reference: Am Min 67:132-136; Klaus Keil, Kurt Fredriksson (1963) Electron microprobe analysis of some rare minerals in the Norton County achondrite. Geochimica et Cosmochimica Acta Volume 27, Issue 9, September 1963, Pages 939–942; Watters, T. R. & Prinz, M (1979) Aubrites - Their origin and relationship to enstatite chondrites. In: Lunar and Planetary Science Conference, 10th, Houston, Tex., March 19-23, 1979, Proceedings. Volume 1. (A80-23557 08-91) New York, Pergamon Press, Inc., 1979, p. 1073-1093.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Copper'1.AA.05Cu
'Iron'1.AE.05Fe
var: Kamacite1.AE.05(Fe,Ni)
Perryite1.BB.10(Ni,Fe)5(Si,P)2
Schreibersite1.BD.05(Fe,Ni)3P
Taenite1.AE.10(Fe,Ni)
Tetrataenite1.AE.10FeNi
Group 2 - Sulphides and Sulfosalts
'Alabandite'2.CD.10MnS
'Brezinaite'2.DA.15Cr3S4
'Caswellsilverite' (TL)2.FB.05NaCrS2
'Cronusite' (TL)2.FB.05Ca0.2CrS2 · 2 H2O
'Cubanite'2.CB.55aCuFe2S3
'Daubréelite'2.DA.05Fe2+Cr3+2S4
Niningerite2.CD.10(Mg,Fe2+,Mn2+)S
Oldhamite2.CD.10(Ca,Mg)S
Schöllhornite (TL)2.FB.05Na0.3CrS2 · H2O
Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
Manganite4.FD.15Mn3+O(OH)
Spinel4.BB.05MgAl2O4
Tridymite4.DA.10SiO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Gypsum'7.CD.40CaSO4 · 2H2O
Group 9 - Silicates
'Anorthite'9.FA.35Ca(Al2Si2O8)
'Clinoenstatite'9.DA.10MgSiO3
'Diopside'9.DA.15CaMgSi2O6
'Enstatite'9.DA.05MgSiO3
'Forsterite'9.AC.05Mg2SiO4
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Aubrite meteorite'-
'Carletonmooreite' (TL)-Ni3Si
Silica-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Iron
var: Kamacite
1.1.11.1(Fe,Ni)
Perryite1.1.22.1(Ni,Fe)5(Si,P)2
Schreibersite1.1.21.2(Fe,Ni)3P
Taenite1.1.11.2(Fe,Ni)
Tetrataenite1.1.11.3FeNi
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Alabandite2.8.1.4MnS
Troilite2.8.9.1FeS
AmBnXp, with (m+n):p = 1:1
Caswellsilverite (TL)2.9.17.1NaCrS2
Cubanite2.9.13.1CuFe2S3
Schöllhornite (TL)2.9.17.2Na0.3CrS2 · H2O
AmBnXp, with (m+n):p = 3:4
Brezinaite2.10.2.2Cr3S4
Daubréelite2.10.1.11Fe2+Cr3+2S4
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Manganite6.1.3.1Mn3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Spinel7.2.1.1MgAl2O4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Forsterite51.3.1.2Mg2SiO4
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Clinoenstatite65.1.1.1MgSiO3
Diopside65.1.3a.1CaMgSi2O6
Enstatite65.1.2.1MgSiO3
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Tridymite75.1.2.1SiO2
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
Anorthite-Ca(Al2Si2O8)
'Aubrite meteorite'-
Carletonmooreite (TL)-Ni3Si
Cronusite (TL)-Ca0.2CrS2 · 2 H2O
Iron-Fe
Niningerite-(Mg,Fe2+,Mn2+)S
Oldhamite-(Ca,Mg)S
'Silica'-

List of minerals for each chemical element

HHydrogen
H CronusiteCa0.2CrS2 · 2 H2O
H GypsumCaSO4 · 2H2O
H ManganiteMn3+O(OH)
H SchöllhorniteNa0.3CrS2 · H2O
OOxygen
O AnorthiteCa(Al2Si2O8)
O ClinoenstatiteMgSiO3
O CronusiteCa0.2CrS2 · 2 H2O
O DiopsideCaMgSi2O6
O EnstatiteMgSiO3
O ForsteriteMg2SiO4
O GypsumCaSO4 · 2H2O
O ManganiteMn3+O(OH)
O SchöllhorniteNa0.3CrS2 · H2O
O SpinelMgAl2O4
O TridymiteSiO2
NaSodium
Na CaswellsilveriteNaCrS2
Na SchöllhorniteNa0.3CrS2 · H2O
MgMagnesium
Mg ClinoenstatiteMgSiO3
Mg DiopsideCaMgSi2O6
Mg EnstatiteMgSiO3
Mg ForsteriteMg2SiO4
Mg Niningerite(Mg,Fe2+,Mn2+)S
Mg Oldhamite(Ca,Mg)S
Mg SpinelMgAl2O4
AlAluminium
Al AnorthiteCa(Al2Si2O8)
Al SpinelMgAl2O4
SiSilicon
Si AnorthiteCa(Al2Si2O8)
Si CarletonmooreiteNi3Si
Si ClinoenstatiteMgSiO3
Si DiopsideCaMgSi2O6
Si EnstatiteMgSiO3
Si ForsteriteMg2SiO4
Si Perryite(Ni,Fe)5(Si,P)2
Si TridymiteSiO2
PPhosphorus
P Perryite(Ni,Fe)5(Si,P)2
P Schreibersite(Fe,Ni)3P
SSulfur
S AlabanditeMnS
S BrezinaiteCr3S4
S CaswellsilveriteNaCrS2
S CronusiteCa0.2CrS2 · 2 H2O
S CubaniteCuFe2S3
S DaubréeliteFe2+Cr23+S4
S GypsumCaSO4 · 2H2O
S Niningerite(Mg,Fe2+,Mn2+)S
S Oldhamite(Ca,Mg)S
S SchöllhorniteNa0.3CrS2 · H2O
S TroiliteFeS
CaCalcium
Ca AnorthiteCa(Al2Si2O8)
Ca CronusiteCa0.2CrS2 · 2 H2O
Ca DiopsideCaMgSi2O6
Ca GypsumCaSO4 · 2H2O
Ca Oldhamite(Ca,Mg)S
CrChromium
Cr BrezinaiteCr3S4
Cr CaswellsilveriteNaCrS2
Cr CronusiteCa0.2CrS2 · 2 H2O
Cr DaubréeliteFe2+Cr23+S4
Cr SchöllhorniteNa0.3CrS2 · H2O
MnManganese
Mn AlabanditeMnS
Mn ManganiteMn3+O(OH)
FeIron
Fe CubaniteCuFe2S3
Fe DaubréeliteFe2+Cr23+S4
Fe IronFe
Fe Iron (var: Kamacite)(Fe,Ni)
Fe Perryite(Ni,Fe)5(Si,P)2
Fe Schreibersite(Fe,Ni)3P
Fe Taenite(Fe,Ni)
Fe TetrataeniteFeNi
Fe TroiliteFeS
NiNickel
Ni CarletonmooreiteNi3Si
Ni Iron (var: Kamacite)(Fe,Ni)
Ni Perryite(Ni,Fe)5(Si,P)2
Ni Schreibersite(Fe,Ni)3P
Ni Taenite(Fe,Ni)
Ni TetrataeniteFeNi
CuCopper
Cu CopperCu
Cu CubaniteCuFe2S3

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Holocene - Pleistocene
0 - 2.588 Ma



ID: 2979301
Loess

Age: Pleistocene (0 - 2.588 Ma)

Description: eolian silts

Comments: approximate thickness 0-50 ft. in outcrop Original map source: Ross, Jorgina A., 1992, A digital representation of the Geological map of Kansas: Kansas Geological Survey, Map M-23, scale 1:500,000.

Lithology: Major:{silt}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Paleocene
56 - 66 Ma



ID: 3193162
Cenozoic sedimentary rocks

Age: Paleocene (56 - 66 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
F. C. Leonard (1946). The Furnas County stone of the Norton County, Kansas-Furnas County Nebraska, achondritic fall. Popular Astronomy, Vol. 56, pp.434-436.
Klaus Keil, Kurt Fredriksson (1963) Electron microprobe analysis of some rare minerals in the Norton County achondrite. Geochimica et Cosmochimica Acta Volume 27, Issue 9, September 1963, Pages 939–942.
Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.
Okada, A., Keil, K., Leonard, B. F., & Hutcheon, I. D. (1984). Schöllhornite, Na0. 3 (H2O) 1 [CrS2] a New Mineral in the Norton County Enstatite Achondrite. Meteoritics, 19, 284.
Mittlefehldt, D. W., McCoy, T. J., Goodrich, C. A. & Kracher, A. (1998) Non-chondritic meteorites from Asteroidal bodies. In: Planetary Materials (Papike, J. J., Editor): Chapter 4, 195 pages. Mineralogical Society of America: Washington, DC, USA.
Keil, K. (2010) Enstatite achondrite meteorites (aubrites) and the histories of their asteroidal parent bodies: Chemie der Erde : Beiträge zur chemischen Mineralogie, Petrographie und Geologie. 70, no. 4, (2010): 295-317.
Rubin, A. E. (2015). Shock and annealing in aubrites: Implications for parent-body history. Meteoritics & Planetary Science 50(7): 1217-1227. (July 2014).

External Links

http://www.lpi.usra.edu/meteor/metbull.php - Meteoritical Bulletin Database
http://www.lpi.usra.edu/meteor/metbull.php?code=17922 -Norton County@MetBullDatabase


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