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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):
0


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
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ Chromite
Formula: Fe2+Cr3+2O4
ⓘ Clinoenstatite
Formula: MgSiO3
ⓘ 'Clinopyroxene Subgroup'
ⓘ 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
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Native Copper
Formula: Cu
ⓘ Native Iron
Formula: Fe
Description: Slightly variable Ni content (3-5.5%) reflects lack of equilibrium [Brearley & Jones, 1998]
ⓘ Native Iron var. Kamacite
Formula: (Fe,Ni)
Description: Slightly variable Ni content (3-5.5%) reflects lack of equilibrium [Brearley & Jones, 1998]
ⓘ Native Nickel
Formula: Ni
ⓘ Nepheline
Formula: Na3K(Al4Si4O16)
Description: Several instances of feldspathoids in chondrules (Bridges & Hutchison, 1995)
ⓘ '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
ⓘNative Copper1.AA.05Cu
ⓘNative Nickel1.AA.05Ni
ⓘNative 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
ⓘClinoenstatite9.DA.10MgSiO3
ⓘPigeonite9.DA.10(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘDiopside9.DA.15CaMgSi2O6
ⓘAugite
var. Ferroaugite
9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ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ⓘ Fayalite-Forsterite Series
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)
Oⓘ Augite var. Ferroaugite(CaxMgyFez)(Mgy1Fez1)Si2O6
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
Mgⓘ Fayalite-Forsterite Series
Mgⓘ Augite var. Ferroaugite(CaxMgyFez)(Mgy1Fez1)Si2O6
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ⓘ Fayalite-Forsterite Series
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Pyroxene GroupADSi2O6
Siⓘ Augite var. Ferroaugite(CaxMgyFez)(Mgy1Fez1)Si2O6
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)
Caⓘ Augite var. Ferroaugite(CaxMgyFez)(Mgy1Fez1)Si2O6
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ⓘ Native IronFe
Feⓘ Native 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
Feⓘ Fayalite-Forsterite Series
Feⓘ Augite var. Ferroaugite(CaxMgyFez)(Mgy1Fez1)Si2O6
NiNickel
Niⓘ Native Iron var. Kamacite(Fe,Ni)
Niⓘ Native NickelNi
Niⓘ Schreibersite(Fe,Ni)3P
Niⓘ Taenite(Fe,Ni)
CuCopper
Cuⓘ Native CopperCu

Other Regions, Features and Areas containing this locality

AsiaContinent
Eurasian Plate

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