Grant County meteorite, Grant County, Kansas, USAi
| Regional Level Types | |
|---|---|
| Grant County meteorite | Meteorite Fall Location |
| Grant County | County |
| Kansas | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 28' 0'' North , 101° 25' 59'' West
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
Ordinary Chondrite (L6)
Find, 1936; 2.3 kg
Several fragments of a meteoritic stone broken were found. Olivine (Fa26) and orthopyroxene (hypersthene) compositions are characteristic of the L group meteorites. Ramdohr identified only 5 opaques (including the expected kamacite, taenite, and troilite) so the meteorite is presumably quite weathered. A number of sulfur nodules have been found within the meteorite. A U,Th-He age of 2.58 Ga has been reported.
The largest masses have been held at the United States National Museum in Washington, DC [696 g as of 2000], at Arizona State's Center for Meteorite Studies [467.5 g in 2016], and the Natural History Museum in London [455.5 g in 2017] .
What's in a name? "Grant County" is the meteorite's proper name. The "Grant" meteorite is a large octahedral iron meteorite [482 kg] found about 1929 in the Zuni Mountains of New Mexico.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
5 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 DiagramDetailed Mineral List:
| ⓘ 'Fayalite-Forsterite Series' Description: Composition of Olivine (Fa26) in Mason, 1963. |
| ⓘ Isocubanite Formula: CuFe2S3 Description: Isocubanite [Ramdohr's "chalcopyrrhotite"] is a weathering product in some meteorites. |
| ⓘ Native Iron Formula: Fe |
| ⓘ Native Iron var. Kamacite Formula: (Fe,Ni) |
| ⓘ 'Orthopyroxene Subgroup' Description: Primary pyroxene in equilibrated olivine-hypersthene chondrites.
|
| ⓘ Schreibersite Formula: (Fe,Ni)3P |
| ⓘ Taenite Formula: (Fe,Ni) |
| ⓘ Troilite Formula: FeS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Iron | 1.AE.05 | Fe |
| ⓘ | var. Kamacite | 1.AE.05 | (Fe,Ni) |
| ⓘ | Taenite | 1.AE.10 | (Fe,Ni) |
| ⓘ | Schreibersite | 1.BD.05 | (Fe,Ni)3P |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Isocubanite | 2.CB.55b | CuFe2S3 |
| ⓘ | Troilite | 2.CC.10 | FeS |
| Unclassified | |||
| ⓘ | 'Fayalite-Forsterite Series' | - | |
| ⓘ | 'Orthopyroxene Subgroup' | - | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Fayalite-Forsterite Series | |
| Mg | Magnesium | |
| Mg | ⓘ Fayalite-Forsterite Series | |
| Si | Silicon | |
| Si | ⓘ Fayalite-Forsterite Series | |
| P | Phosphorus | |
| P | ⓘ Schreibersite | (Fe,Ni)3P |
| S | Sulfur | |
| S | ⓘ Isocubanite | CuFe2S3 |
| S | ⓘ Troilite | FeS |
| Fe | Iron | |
| Fe | ⓘ Native Iron | Fe |
| Fe | ⓘ Isocubanite | CuFe2S3 |
| Fe | ⓘ Native Iron var. Kamacite | (Fe,Ni) |
| Fe | ⓘ Schreibersite | (Fe,Ni)3P |
| Fe | ⓘ Taenite | (Fe,Ni) |
| Fe | ⓘ Troilite | FeS |
| Fe | ⓘ Fayalite-Forsterite Series | |
| Ni | Nickel | |
| Ni | ⓘ Native Iron var. Kamacite | (Fe,Ni) |
| Ni | ⓘ Schreibersite | (Fe,Ni)3P |
| Ni | ⓘ Taenite | (Fe,Ni) |
| Cu | Copper | |
| Cu | ⓘ Isocubanite | CuFe2S3 |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Anadarko BasinBasin
- Great Plains DomainDomain
- Yavapai TerraneVolcanic Arc
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References
www.encyclopedia-of-meteorites.com (n.d.) http://www.encyclopedia-of-meteorites.com/test/GrantCo_don_edwards.jpg
Mason, Brian (1963) Olivine composition in chondrites. Geochimica et Cosmochimica Acta, 27 (10) 1011-1023 doi:10.1016/0016-7037(63)90062-0
