Leedey meteorite, Dewey County, Oklahoma, USAi
Regional Level Types | |
---|---|
Leedey meteorite | Meteorite Fall Location |
Dewey County | County |
Oklahoma | State |
USA | Country |
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Latitude & Longitude (WGS84):
35° 52' 59'' North , 99° 19' 59'' West
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
Mindat Locality ID:
270992
Long-form identifier:
mindat:1:2:270992:8
GUID (UUID V4):
1d07fdce-4a97-4d41-8f05-944c52e53af9
Ordinary chondrite, (L6; S3; W0)
Fell, 25 November 1943; 51.5 kg
During the early evening (~ 7PM) a bright fireball was seen traveling for ~ 400 km over a northwestwardly path from north central Texas to south central Oklahoma where it broke apart near Leedey, Oklahoma. The meteorite fell during a period of wartime restrictions, but a dedicated search led mostly by the two renown meteorite hunters, Oscar Monnig and Harvey H. Nininger, resulted in the recovery of 24 separate stones over the next year. All of the stones were recovered along a narrow 17 km long strewnfield with the smallest piece (57 g) and largest piece (20.4 kg) found at the SE and NW ends, respectively, of the strewn field. As the pieces were recovered at different times and because of imperfect storage conditions a number of pieces are partially stained by iron oxides. However, they are not in the main terribly weathered.
The meteorite itself is classified as an L6 ordinary chondrites. Several analyses indicate bulk iron contents (~24.2 wt% Fe) plus olivine (Fa~25) and low Ca-pyroxene (Fs~21) compositions characteristic of the L chondrites. Texturally, the usually indistinct chondrules are intergrown within a recrystallized matrix. Mineralogically, the meteorite is dominated by olivine and pyroxene with minor albitic plagioclase grains[>50 µm], troilite, and Fe-Ni metal. Accessory chromite, phosphates and other minor silicates are also reported. Several indicators of significant shock (level S3) are present. Planar fractures and mosaicism in olivine, small shock pockets adjacent to metal, and metal grains containing finely dispersed troilite are most notable. Odd inclusions include a 6x8 mm composite metal-sulfide grain with pyrophanite and other phases.
The L (relatively low in total iron) chondrites are the largest group of ordinary chondrites and represent ~40% of the classified witnessed falls with the L6 petrologic type representing the great majority (~70 %) of the total L group). Leedey is the 18th largest of the 271 meteorite falls classified exactly as an L chondrite (as of May 2016). The largest portions of the Leedey meteorite were obtained by Walter Monnig and became part of the Monnig Collection at Texas Christian University. A 10.7 kg portion is held by the Center for Meteorite Studies at Arizona State University.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
11 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:
ⓘ Anorthite Formula: Ca(Al2Si2O8) Description: Occasional grains of anorthitic plagioclase present. |
ⓘ Anorthite var. Bytownite Formula: (Ca,Na)[Al(Al,Si)Si2O8] Description: Occasional grains of anorthitic plagioclase present. |
ⓘ Chlorapatite Formula: Ca5(PO4)3Cl |
ⓘ Chromite Formula: Fe2+Cr3+2O4 |
ⓘ Copper Formula: Cu |
ⓘ Diopside Formula: CaMgSi2O6 |
ⓘ 'Fayalite-Forsterite Series' Description: Olivine (Fa25.4) [Rubin,1990], (Fa24.9) [McCoy et al., 1997]. References: |
ⓘ Iron Formula: Fe References: |
ⓘ Iron var. Kamacite Formula: (Fe,Ni) References: |
ⓘ Merrillite Formula: Ca9NaMg(PO4)7 |
ⓘ 'Orthopyroxene Subgroup' Description: Composition of Orthopyroxene [Fs20], Fredriksson et al. References: |
ⓘ 'Plagioclase' Formula: (Na,Ca)[(Si,Al)AlSi2]O8 Description: Albitic Plagioclase (normal for OCh)— Or5.7 An10·0 Ab84.3, ave. References: |
ⓘ Pyrophanite Formula: Mn2+TiO3 Description: Pyrophanite in metal-sulfide inclusion at boundary of silicate host. |
ⓘ 'Pyroxene Group' Formula: ADSi2O6 References: |
ⓘ Taenite Formula: (Fe,Ni) |
ⓘ Tetrataenite Formula: FeNi |
ⓘ Troilite Formula: FeS References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
ⓘ | Copper | 1.AA.05 | Cu |
ⓘ | Iron | 1.AE.05 | Fe |
ⓘ | var. Kamacite | 1.AE.05 | (Fe,Ni) |
ⓘ | Taenite | 1.AE.10 | (Fe,Ni) |
ⓘ | Tetrataenite | 1.AE.10 | FeNi |
Group 2 - Sulphides and Sulfosalts | |||
ⓘ | Troilite | 2.CC.10 | FeS |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Chromite | 4.BB.05 | Fe2+Cr3+2O4 |
ⓘ | Pyrophanite | 4.CB.05 | Mn2+TiO3 |
Group 8 - Phosphates, Arsenates and Vanadates | |||
ⓘ | Merrillite | 8.AC.45 | Ca9NaMg(PO4)7 |
ⓘ | Chlorapatite | 8.BN.05 | Ca5(PO4)3Cl |
Group 9 - Silicates | |||
ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
ⓘ | Anorthite | 9.FA.35 | Ca(Al2Si2O8) |
ⓘ | var. Bytownite | 9.FA.35 | (Ca,Na)[Al(Al,Si)Si2O8] |
Unclassified | |||
ⓘ | 'Fayalite-Forsterite Series' | - | |
ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
ⓘ | 'Pyroxene Group' | - | ADSi2O6 |
ⓘ | 'Orthopyroxene Subgroup' | - |
List of minerals for each chemical element
O | Oxygen | |
---|---|---|
O | ⓘ Anorthite | Ca(Al2Si2O8) |
O | ⓘ Anorthite var. Bytownite | (Ca,Na)[Al(Al,Si)Si2O8] |
O | ⓘ Chlorapatite | Ca5(PO4)3Cl |
O | ⓘ Chromite | Fe2+Cr23+O4 |
O | ⓘ Diopside | CaMgSi2O6 |
O | ⓘ Pyrophanite | Mn2+TiO3 |
O | ⓘ Merrillite | Ca9NaMg(PO4)7 |
O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
O | ⓘ Pyroxene Group | ADSi2O6 |
Na | Sodium | |
Na | ⓘ Anorthite var. Bytownite | (Ca,Na)[Al(Al,Si)Si2O8] |
Na | ⓘ Merrillite | Ca9NaMg(PO4)7 |
Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Mg | Magnesium | |
Mg | ⓘ Diopside | CaMgSi2O6 |
Mg | ⓘ Merrillite | Ca9NaMg(PO4)7 |
Al | Aluminium | |
Al | ⓘ Anorthite | Ca(Al2Si2O8) |
Al | ⓘ Anorthite var. Bytownite | (Ca,Na)[Al(Al,Si)Si2O8] |
Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Si | Silicon | |
Si | ⓘ Anorthite | Ca(Al2Si2O8) |
Si | ⓘ Anorthite var. Bytownite | (Ca,Na)[Al(Al,Si)Si2O8] |
Si | ⓘ Diopside | CaMgSi2O6 |
Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Si | ⓘ Pyroxene Group | ADSi2O6 |
P | Phosphorus | |
P | ⓘ Chlorapatite | Ca5(PO4)3Cl |
P | ⓘ Merrillite | Ca9NaMg(PO4)7 |
S | Sulfur | |
S | ⓘ Troilite | FeS |
Cl | Chlorine | |
Cl | ⓘ Chlorapatite | Ca5(PO4)3Cl |
Ca | Calcium | |
Ca | ⓘ Anorthite | Ca(Al2Si2O8) |
Ca | ⓘ Anorthite var. Bytownite | (Ca,Na)[Al(Al,Si)Si2O8] |
Ca | ⓘ Chlorapatite | Ca5(PO4)3Cl |
Ca | ⓘ Diopside | CaMgSi2O6 |
Ca | ⓘ Merrillite | Ca9NaMg(PO4)7 |
Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
Ti | Titanium | |
Ti | ⓘ Pyrophanite | Mn2+TiO3 |
Cr | Chromium | |
Cr | ⓘ Chromite | Fe2+Cr23+O4 |
Mn | Manganese | |
Mn | ⓘ Pyrophanite | Mn2+TiO3 |
Fe | Iron | |
Fe | ⓘ Chromite | Fe2+Cr23+O4 |
Fe | ⓘ Iron | Fe |
Fe | ⓘ Iron var. Kamacite | (Fe,Ni) |
Fe | ⓘ Taenite | (Fe,Ni) |
Fe | ⓘ Tetrataenite | FeNi |
Fe | ⓘ Troilite | FeS |
Ni | Nickel | |
Ni | ⓘ Iron var. Kamacite | (Fe,Ni) |
Ni | ⓘ Taenite | (Fe,Ni) |
Ni | ⓘ Tetrataenite | FeNi |
Cu | Copper | |
Cu | ⓘ Copper | Cu |
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Anadarko BasinBasin
- Shawnee DomainDomain
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