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Chainpur meteorite, Mau District, Uttar Pradesh, Indiai
Regional Level Types
Chainpur meteoriteMeteorite Fall Location
Mau DistrictDistrict
Uttar PradeshState
IndiaCountry

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Latitude & Longitude (WGS84):
25° 51' 0'' North , 83° 28' 59'' East
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
Mau246,050 (2015)12.8km
Kopāganj33,539 (2015)20.6km
Muhammadābād24,146 (2014)22.9km
Sādāt11,211 (2015)26.9km
Ghosī39,138 (2015)29.0km
Mindat Locality ID:
258978
Long-form identifier:
mindat:1:2:258978:0
GUID (UUID V4):
a674a87b-c279-4cd9-8c10-a23dfab5c798


LL3.4; S1, Primitive Ordinary Chondrite
Fall, 9 May 1907, 13:30 hrs; 8.2 kg

The Chainpur meteorite fell with detonations in 1907 near the borders of Ghazipur and Azamgarh. The fragments included one 5.4 kg stone. While Chainpur's classification as a very low iron ordinary chondrite is unremarkable, what is remarkable is that Chainpur is a fairly large and quite primitive meteorite which has experienced only minor episodes of the thermal and/or aqueous alteration which has befallen most ancient meteorites. Chainpur is comprised mostly of olivine, pyroxene, and plagioclase in both chondrules and matrix. And, as is normal for LL chondrites, it possesses moderate amounts of metallic nickel-iron (mostly kamacite) and sulfides (mostly troilite). What is not quite so normal, however, is the large number of small and diverse Chainpur components which are not in equilibrium with each other. These regions and inclusions include a number of pyroxenes along with a variety of silica saturated and silica-undersaturated assemblages. These assemblages help to give this particular meteorite considerably more mineralogical diversity than more metamorphosed type 4, 5, and 6 LL chondrites which have essentially the same overall chemical composition. The scientific importance of such unequilibrated chondrites is that they offer additional clues about constituents of the ancient solar nebula present before the chondrite homeworlds were fully assembled.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


20 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 Diagram

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Description: Instances of overgrowing low-Ca pyroxene
Augite var. Ferroaugite
Chromite
Formula: Fe2+Cr3+2O4
Clinoenstatite
Formula: MgSiO3
'Clinopyroxene Subgroup'
Copper
Formula: Cu
Diopside
Formula: CaMgSi2O6
Enstatite
Formula: Mg2Si2O6
Description: Enstatite (En93), sensu stricto, in one chondrule.
Fayalite
Formula: Fe2+2SiO4
Description: Olivine Range Fa18-88 reported by Krot et al. (2006).
'Fayalite-Forsterite Series'
Description: Olivine range of Fa 0-34 (mol%) reported in Ruzicka (1990)
References:
'Feldspar Group'
Forsterite
Formula: Mg2SiO4
Description: Extremely Fe-poor olivines include an Fo99.7 grain.
'Glass'
Ilmenite
Formula: Fe2+TiO3
Iron
Formula: Fe
Description: Slightly variable Ni content (3-5.5%) reflects lack of equilibrium [Brearley & Jones, 1998]
Iron var. Kamacite
Formula: (Fe,Ni)
Description: Slightly variable Ni content (3-5.5%) reflects lack of equilibrium [Brearley & Jones, 1998]
Magnetite
Formula: Fe2+Fe3+2O4
Nepheline
Formula: Na3K(Al4Si4O16)
Description: Several instances of feldspathoids in chondrules (Bridges & Hutchison, 1995)
Nickel
Formula: Ni
'Orthopyroxene Subgroup'
Pigeonite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Description: An55-80 reported by Töpel-Schadt & Müller (1979)
References:
'Pyroxene Group'
Formula: ADSi2O6
'Scapolite'
Description: Several instances of feldspathoids in chondrules (Bridges & Hutchison, 1995)
Schreibersite
Formula: (Fe,Ni)3P
'Silica'
'Smectite Group'
Formula: A0.3D2-3[T4O10]Z2 · nH2O
Sodalite
Formula: Na4(Si3Al3)O12Cl
Description: Includes microcrystalline grains in mesostases; Several instances of feldspathoids in chondrules (Bridges & Hutchison, 1995)
Spinel
Formula: MgAl2O4
Taenite
Formula: (Fe,Ni)
Description: 30-50% Ni content
Troilite
Formula: FeS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Nickel1.AA.05Ni
Iron1.AE.05Fe
var. Kamacite1.AE.05(Fe,Ni)
Taenite1.AE.10(Fe,Ni)
Schreibersite1.BD.05(Fe,Ni)3P
Group 2 - Sulphides and Sulfosalts
Troilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Magnetite4.BB.05Fe2+Fe3+2O4
Spinel4.BB.05MgAl2O4
Ilmenite4.CB.05Fe2+TiO3
Group 9 - Silicates
Fayalite9.AC.05Fe2+2SiO4
Forsterite9.AC.05Mg2SiO4
Enstatite9.DA.05Mg2Si2O6
Pigeonite9.DA.10(CaxMgyFez)(Mgy1Fez1)Si2O6
Clinoenstatite9.DA.10MgSiO3
Augite
var. Ferroaugite
9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Diopside9.DA.15CaMgSi2O6
Nepheline9.FA.05Na3K(Al4Si4O16)
Albite9.FA.35Na(AlSi3O8)
Sodalite9.FB.10Na4(Si3Al3)O12Cl
Unclassified
'Feldspar Group'-
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Scapolite'-
'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
'Pyroxene Group'-ADSi2O6
'Silica'-
'Orthopyroxene Subgroup'-
'Smectite Group'-A0.3D2-3[T4O10]Z2 · nH2O
'Glass'-
'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
H Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
H ApatiteCa5(PO4)3(Cl/F/OH)
OOxygen
O AlbiteNa(AlSi3O8)
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O ChromiteFe2+Cr23+O4
O ClinoenstatiteMgSiO3
O DiopsideCaMgSi2O6
O EnstatiteMg2Si2O6
O FayaliteFe22+SiO4
O ForsteriteMg2SiO4
O IlmeniteFe2+TiO3
O MagnetiteFe2+Fe23+O4
O NephelineNa3K(Al4Si4O16)
O Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
O SodaliteNa4(Si3Al3)O12Cl
O SpinelMgAl2O4
O Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
O Pyroxene GroupADSi2O6
O Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
O ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
F ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Na AlbiteNa(AlSi3O8)
Na NephelineNa3K(Al4Si4O16)
Na SodaliteNa4(Si3Al3)O12Cl
Na Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg ClinoenstatiteMgSiO3
Mg DiopsideCaMgSi2O6
Mg EnstatiteMg2Si2O6
Mg ForsteriteMg2SiO4
Mg Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg SpinelMgAl2O4
AlAluminium
Al AlbiteNa(AlSi3O8)
Al NephelineNa3K(Al4Si4O16)
Al SodaliteNa4(Si3Al3)O12Cl
Al SpinelMgAl2O4
Al Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si ClinoenstatiteMgSiO3
Si DiopsideCaMgSi2O6
Si EnstatiteMg2Si2O6
Si FayaliteFe22+SiO4
Si ForsteriteMg2SiO4
Si NephelineNa3K(Al4Si4O16)
Si Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si SodaliteNa4(Si3Al3)O12Cl
Si Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Si Pyroxene GroupADSi2O6
PPhosphorus
P Schreibersite(Fe,Ni)3P
P ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
S TroiliteFeS
ClChlorine
Cl SodaliteNa4(Si3Al3)O12Cl
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K NephelineNa3K(Al4Si4O16)
CaCalcium
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca DiopsideCaMgSi2O6
Ca Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Ca ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Ti IlmeniteFe2+TiO3
CrChromium
Cr ChromiteFe2+Cr23+O4
FeIron
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe ChromiteFe2+Cr23+O4
Fe FayaliteFe22+SiO4
Fe IlmeniteFe2+TiO3
Fe IronFe
Fe Iron var. Kamacite(Fe,Ni)
Fe MagnetiteFe2+Fe23+O4
Fe Pigeonite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe Schreibersite(Fe,Ni)3P
Fe Taenite(Fe,Ni)
Fe TroiliteFeS
NiNickel
Ni Iron var. Kamacite(Fe,Ni)
Ni NickelNi
Ni Schreibersite(Fe,Ni)3P
Ni Taenite(Fe,Ni)
CuCopper
Cu CopperCu

Other Regions, Features and Areas containing this locality

AsiaContinent

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

 
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