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Caddo County meteorite, Caddo County, Oklahoma, USAi
Regional Level Types
Caddo County meteoriteMeteorite Fall Location
Caddo CountyCounty
OklahomaState
USACountry

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Latitude & Longitude (WGS84):
35° 0' North , 98° 20' West
Latitude & Longitude (decimal):
35.00000,-98.33333
GRN:
N24W58
Type:
Meteorite Fall Location
Meteorite Class:
Ungrouped IAB iron meteorite
Meteoritical Society Class:
Iron, IAB-ung
Metbull:
View entry in Meteoritical Bulletin Database
Köppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Anadarko6,717 (2017)11.5km
Apache1,430 (2017)12.2km
Fort Cobb627 (2017)14.3km
Cyril1,046 (2017)16.7km
Cement495 (2017)19.1km
Mindat Locality ID:
31073
Long-form identifier:
mindat:1:2:31073:3
GUID (UUID V4):
0


Iron Meteorite with silicate inclusions found in 1987.
Classification IAB-ungrouped, 18 kg

Caddo County's gabbroic material, rich in plagioclase and augite, present a different variety of basaltic material than those typical of the howardite-eucrite-diogenite (HED) group which guides so much meteoritical thinking.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 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)
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ Chromite
Formula: Fe2+Cr3+2O4
ⓘ Diopside
Formula: CaMgSi2O6
ⓘ Diopside var. Chromium-bearing Diopside
Formula: Ca(Mg,Cr)Si2O6
ⓘ Fayalite
Formula: Fe2+2SiO4
ⓘ 'Fayalite-Forsterite Series'
Description: Mg-rich Fo90
ⓘ Graphite
Formula: C
ⓘ 'Nickel-iron'
ⓘ 'Orthopyroxene Subgroup'
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ Troilite
Formula: FeS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘGraphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
ⓘTroilite2.CC.10FeS
Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
Group 9 - Silicates
ⓘFayalite9.AC.05Fe2+2SiO4
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘDiopside
var. Chromium-bearing Diopside		9.DA.15Ca(Mg,Cr)Si2O6
ⓘ9.DA.15CaMgSi2O6
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Pyroxene Group'-ADSi2O6
ⓘ'Orthopyroxene Subgroup'-
ⓘ'Nickel-iron'-

List of minerals for each chemical element

CCarbon
Cⓘ GraphiteC
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ DiopsideCaMgSi2O6
Oⓘ FayaliteFe22+SiO4
Oⓘ Fayalite-Forsterite Series
Oⓘ Pyroxene GroupADSi2O6
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
MgMagnesium
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ Fayalite-Forsterite Series
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Siⓘ DiopsideCaMgSi2O6
Siⓘ FayaliteFe22+SiO4
Siⓘ Fayalite-Forsterite Series
Siⓘ Pyroxene GroupADSi2O6
SSulfur
Sⓘ TroiliteFeS
CaCalcium
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Caⓘ DiopsideCaMgSi2O6
CrChromium
Crⓘ Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Crⓘ ChromiteFe2+Cr23+O4
FeIron
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ FayaliteFe22+SiO4
Feⓘ TroiliteFeS
Feⓘ Fayalite-Forsterite Series

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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

Meteoritics, vol. 28, no. 3, volume 28, page 447 (July 1993)
Takeda, H., Yugami, K., Bogard, D., & Miyamoto, M. (1997) Plagioclase-augite-rich gabbro in the Caddo County IAB iron, and the missing basalts associated with iron meteorites: Conference Paper, Lunar and Planetary Science Conference XXVIII, p. 409.
Grady, Monica (2000) Catalogue of Meteorites (5th ed.). Cambridge University Press.
www.lpi.usra.edu (n.d.) http://www.lpi.usra.edu/meteor/metbull.php
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