Ordinary chondrite (H4)
Find, 1938; 4.8 kg

A weathered meteorite stone was plowed up in 1937 and recognized as a meteorite in 1938. Inspections reveal chondrules, clasts and Fe-Ni grains within a dark matrix transected by weathered veins. Total iron (24. wt%), equilibrated olivine (Fa20) and nearly equilibrated low Ca-pyroxene are all characteristic of H-group chondrites. Mineralogically, the meteorite consists primarily of dominant olivine accompanied by pyroxene along with minor troilite and Fe-Ni metal. Accessory chromite and small amounts of copper and ilmenite are also present.

A cosmic ray exposure (CRE) age of 6.5 Ma has been reported. This suggests that Garnet may be a fragments of an intermediate parent body (IPA) which has produce a large fraction of the current stream of H-group meteoroids in earth-crossing orbits. [Almost half of recovered H-group chondrites have CRE ages in the 6-10 Ma range.]

As with many meteorites recovered with the assistance of Harvey Nininger, a significant portion of the Garnett meteorite is now at Arizona State University's Center for Meteorite Studies [1372.9 g in 2017].

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

ⓘ Chromite

ⓘ 'Fayalite-Forsterite Series'

6 valid minerals.

Meteorite/Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

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Alphabetical List Tree Diagram

ⓘ H4 chondrite meteorite

Detailed Mineral List:

ⓘ Chromite

Formula: Fe²⁺Cr³⁺₂O₄

References:

Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025

ⓘ 'Fayalite-Forsterite Series'

Description: Olivine composition(Fa20) characteristic of H-group chondrites.

References:

Mason, Brian (1963) Olivine composition in chondrites. Geochimica et Cosmochimica Acta, 27 (10) 1011-1023 doi:10.1016/0016-7037(63)90062-0

Graham, A. L., Bevan, A. W. R., Hutchison, R. (1985) Catalogue of Meteorites - With Special Reference to those Represented in the Collection of the British Museum (Natural History) (4th ed.) British Museum (Natural History), London.

ⓘ Ilmenite

Formula: Fe²⁺TiO₃

References:

Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025

ⓘ Native Copper

Formula: Cu

References:

Nininger, H. H. (1950) The Nininger collection of meteorites: Popular Astronomy 58: 267-277.

Nininger, H.H. (1952) Out of the Sky. Dover. 336 pages.

Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025

ⓘ Native Iron

Formula: Fe

References:

Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025

ⓘ Native Iron var. Kamacite

Formula: (Fe,Ni)

References:

Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025

ⓘ 'Pyroxene Group'

Formula: ADSi₂O₆

References:

ⓘ Taenite

Formula: (Fe,Ni)

References:

Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025

Easton, A. J. & Elliott, C. J. (1977) Analyses of some meteorites from the British Museum /Natural History/ collection: Meteoritics 12(4): 409-416. (Dec. 1977).

ⓘ Troilite

Formula: FeS

References:

Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Native Copper	1.AA.05	Cu
ⓘ	Native Iron	1.AE.05	Fe
ⓘ	var. Kamacite	1.AE.05	(Fe,Ni)
ⓘ	Taenite	1.AE.10	(Fe,Ni)
Group 2 - Sulphides and Sulfosalts
ⓘ	Troilite	2.CC.10	FeS
Group 4 - Oxides and Hydroxides
ⓘ	Chromite	4.BB.05	Fe²⁺Cr³⁺₂O₄
ⓘ	Ilmenite	4.CB.05	Fe²⁺TiO₃
Unclassified
ⓘ	'Fayalite-Forsterite Series'	-
ⓘ	'Pyroxene Group'	-	ADSi₂O₆

List of minerals for each chemical element

O	Oxygen
O	ⓘ Chromite	Fe²⁺Cr₂³⁺O₄
O	ⓘ Ilmenite	Fe²⁺TiO₃
O	ⓘ Fayalite-Forsterite Series
O	ⓘ Pyroxene Group	ADSi₂O₆
Mg	Magnesium
Mg	ⓘ Fayalite-Forsterite Series
Si	Silicon
Si	ⓘ Fayalite-Forsterite Series
Si	ⓘ Pyroxene Group	ADSi₂O₆
S	Sulfur
S	ⓘ Troilite	FeS
Ti	Titanium
Ti	ⓘ Ilmenite	Fe²⁺TiO₃
Cr	Chromium
Cr	ⓘ Chromite	Fe²⁺Cr₂³⁺O₄
Fe	Iron
Fe	ⓘ Chromite	Fe²⁺Cr₂³⁺O₄
Fe	ⓘ Ilmenite	Fe²⁺TiO₃
Fe	ⓘ Native Iron	Fe
Fe	ⓘ Native Iron var. Kamacite	(Fe,Ni)
Fe	ⓘ Taenite	(Fe,Ni)
Fe	ⓘ Troilite	FeS
Fe	ⓘ Fayalite-Forsterite Series
Ni	Nickel
Ni	ⓘ Native Iron var. Kamacite	(Fe,Ni)
Ni	ⓘ Taenite	(Fe,Ni)
Cu	Copper
Cu	ⓘ Native Copper	Cu

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

Forest City BasinBasin
Mazatzal DomainDomain
Mazatzal TerraneVolcanic Arc

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

www.lpi.usra.edu (n.d.) http://www.lpi.usra.edu/meteor/metbull.php?code=10862

www.encyclopedia-of-meteorites.com (n.d.) http://www.encyclopedia-of-meteorites.com/test/10862_12929_2745.jpg

Nininger, H. H. (1950) The Nininger collection of meteorites: Popular Astronomy 58: 267-277.

Nininger, H.H. (1952) Out of the Sky. Dover. 336 pages.

Mason, Brian (1963) Olivine composition in chondrites. Geochimica et Cosmochimica Acta, 27 (10) 1011-1023 doi:10.1016/0016-7037(63)90062-0

Ramdohr, Paul (1972) The Opaque Minerals in Stony Meteorites. De Gruyter. doi:10.1515/9783112651025

Graf, Th. & Marti K. (1995) Collisional history of H chondrites. J. Geophys. Res. (Planets) 100: 21247–21263. (Oct 1995).

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

Grady, M. M., Pratesi, G., Moggi-Cecchi, V. (2015) Atlas of Meteorites. Cambridge University Press.

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Garnett meteorite, Anderson County, Kansas, USAiRegional Level TypesGarnett meteoriteMeteorite Fall Location Anderson CountyCounty KansasState USACountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Mineral List

Meteorite/Rock Types Recorded

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Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Other Regions, Features and Areas containing this locality

References

Garnett meteorite, Anderson County, Kansas, USA i
Regional Level Types
Garnett meteorite Meteorite Fall Location
Anderson County County
Kansas State
USA Country