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Isna meteorite, New Valley Governorate, Egypti
Regional Level Types
Isna meteoriteMeteorite Fall Location
New Valley GovernorateGovernorate
EgyptCountry

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Latitude & Longitude (WGS84):
24° 49' 59'' North , 31° 40' 0'' East
Latitude & Longitude (decimal):
24.83333,31.66667
GeoHash:
G#: ssqt28fbw
GRN:
N17E21
Type:
Meteorite Fall Location
Meteorite Class:
CO3.8 chondrite meteorite
Meteoritical Society Class:
CO3.8
Metbull:
View entry in Meteoritical Bulletin Database
Köppen climate type:
BWh : Hot deserts climate
Mindat Locality ID:
255860
Long-form identifier:
mindat:1:2:255860:1
GUID (UUID V4):
0


Carbonaceous Chondrite [CO3.8]
Find, 1970. A 23 kg individual was found about 100 km SW of Isna, on the Nile River near Luxor.

Isna is the 5th largest of the CO [Ornans-like] meteorites. All Carbonaceous Chondrites are defined by their bulk Mg-Si and oxygen isotope ratios. Within this framework, the CO chemical group is distinguished by small chondrules and refractory inclusions. All 400+ recognized CO stones are classified as CO3 because they contain glass. However, Isna is one of only 3 CO’s of petrologic type CV3.8.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


13 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:

ⓘ Anorthite
Formula: Ca(Al2Si2O8)
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ Clinoenstatite
Formula: MgSiO3
ⓘ 'Clinopyroxene Subgroup'
ⓘ Diopside
Formula: CaMgSi2O6
ⓘ Enstatite
Formula: Mg2Si2O6
ⓘ 'Fayalite-Forsterite Series'
Description: Fa 34-39 in inclusions, but reaches Fa55 in matrix
ⓘ Gehlenite
Formula: Ca2Al[AlSiO7]
ⓘ Hercynite
Formula: Fe2+Al2O4
ⓘ Hibonite
Formula: CaAl12O19
Description: In CAIs [Calcium,Aluminium-rich inclusions]
ⓘ Native Iron
Formula: Fe
ⓘ Native Iron var. Kamacite
Formula: (Fe,Ni)
ⓘ Nepheline
Formula: Na3K(Al4Si4O16)
Description: In inclusions [Also, Cf. Methot et al.,(1974)
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ Spinel
Formula: MgAl2O4
Description: In inclusions; Fe-rich with little compositional variation
ⓘ Taenite
Formula: (Fe,Ni)
Description: Found with troilite
ⓘ Troilite
Formula: FeS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Iron1.AE.05Fe
ⓘvar. Kamacite1.AE.05(Fe,Ni)
ⓘTaenite1.AE.10(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
ⓘTroilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
ⓘHercynite4.BB.05Fe2+Al2O4
ⓘSpinel4.BB.05MgAl2O4
ⓘHibonite4.CC.45CaAl12O19
Group 9 - Silicates
ⓘGehlenite9.BB.10Ca2Al[AlSiO7]
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘClinoenstatite9.DA.10MgSiO3
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘDiopside9.DA.15CaMgSi2O6
ⓘNepheline9.FA.05Na3K(Al4Si4O16)
ⓘAnorthite9.FA.35Ca(Al2Si2O8)
Unclassified
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Pyroxene Group'-ADSi2O6

List of minerals for each chemical element

OOxygen
Oⓘ AnorthiteCa(Al2Si2O8)
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ ClinoenstatiteMgSiO3
Oⓘ DiopsideCaMgSi2O6
Oⓘ EnstatiteMg2Si2O6
Oⓘ GehleniteCa2Al[AlSiO7]
Oⓘ HercyniteFe2+Al2O4
Oⓘ HiboniteCaAl12O19
Oⓘ NephelineNa3K(Al4Si4O16)
Oⓘ SpinelMgAl2O4
Oⓘ Fayalite-Forsterite Series
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Pyroxene GroupADSi2O6
NaSodium
Naⓘ NephelineNa3K(Al4Si4O16)
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ ClinoenstatiteMgSiO3
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ EnstatiteMg2Si2O6
Mgⓘ SpinelMgAl2O4
Mgⓘ Fayalite-Forsterite Series
AlAluminium
Alⓘ AnorthiteCa(Al2Si2O8)
Alⓘ GehleniteCa2Al[AlSiO7]
Alⓘ HercyniteFe2+Al2O4
Alⓘ HiboniteCaAl12O19
Alⓘ NephelineNa3K(Al4Si4O16)
Alⓘ SpinelMgAl2O4
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ AnorthiteCa(Al2Si2O8)
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ ClinoenstatiteMgSiO3
Siⓘ DiopsideCaMgSi2O6
Siⓘ EnstatiteMg2Si2O6
Siⓘ GehleniteCa2Al[AlSiO7]
Siⓘ NephelineNa3K(Al4Si4O16)
Siⓘ Fayalite-Forsterite Series
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Pyroxene GroupADSi2O6
SSulfur
Sⓘ TroiliteFeS
KPotassium
Kⓘ NephelineNa3K(Al4Si4O16)
CaCalcium
Caⓘ AnorthiteCa(Al2Si2O8)
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ DiopsideCaMgSi2O6
Caⓘ GehleniteCa2Al[AlSiO7]
Caⓘ HiboniteCaAl12O19
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
FeIron
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ HercyniteFe2+Al2O4
Feⓘ Native IronFe
Feⓘ Native Iron var. Kamacite(Fe,Ni)
Feⓘ Taenite(Fe,Ni)
Feⓘ TroiliteFeS
Feⓘ Fayalite-Forsterite Series
NiNickel
Niⓘ Native Iron var. Kamacite(Fe,Ni)
Niⓘ Taenite(Fe,Ni)

Other Regions, Features and Areas containing this locality

AfricaContinent
African PlateTectonic Plate
Egypt
North Africa

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

Methot, R.L., Noonan, Albert F., Jarosewich, E., and Degasparis, A.A. (1974) The Isna meteorite - a C3 find from Egypt. Meteoritics, 9(4), 381-382. (Dec 1974)
Methot, R. L. et al., (1975) Mineralogy, petrology and chemistry of the Isna (C3) meteorite. Meteoritics 10 (2): 121-131. (Jun 1975)
Russell, S.S., Greenwood, R.C., Fahey, A.J., Huss, G.R., and Wasserburg, G.J. (1994) An ion microprobe study of CAIs from CO3 meteorites. Meteoritics, 29(4), 525-526. (Jul 1994)
Brearley, A.J. and Jones, R.H. (1998) Chondritic Meteorites. In: Planetary Materials (Papike, J.J., Editor): Chapter 3, 398 pages. Mineralogical Society of America: Washington, DC, USA. (1998)
www.lpi.usra.edu (2010) http://www.lpi.usra.edu/meteor/metbull.php
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