Crescent meteorite, Logan County, Oklahoma, USAi
Regional Level Types | |
---|---|
Crescent meteorite | Meteorite Fall Location |
Logan County | County |
Oklahoma | State |
USA | Country |
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Latitude & Longitude (WGS84):
35° 57' North , 97° 35' West
Latitude & Longitude (decimal):
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Crescent | 1,527 (2017) | 1.1km |
Cimarron City | 165 (2017) | 6.9km |
Cedar Valley | 317 (2017) | 9.7km |
Guthrie | 11,270 (2017) | 16.3km |
Cashion | 847 (2017) | 18.9km |
Mindat Locality ID:
263992
Long-form identifier:
mindat:1:2:263992:8
GUID (UUID V4):
da6beea1-92cb-4a94-bc8c-b437f551c17c
Carbonaceous chondrite (CM2; S1)
Fell, 17 August 1936; 78.4 g
After a brilliant fireball was seen in 3 states and several loud detonations were heard over a nearly 100 km wide strip, the bolide flared and at least two pieces landed in Oklahoma. One fresh, but friable stone with a thin fusion crust was recovered only 3 days later with an additional, more weathered fragment recovered over 6 weeks later. Crescent is a rare CM (Mighei-like) Carbonaceous Chondrite and, as such, is referred to in numerous articles. Like other CM chondrites it is rich in phyllosilicates (frequently unequilibrated), aqueous alterations products, and various inclusions, but specific mineralogical references are rather sparse. Its preterrestrial sulfides include troilite (the most common meteoritic sulfide) as well as pentlandite and pyrrhotite derived from aqueous reactions on the putative CM parent body. Likewise, both meteoritic Fe-Ni metal and Ni-free iron are reported.
Crescent is a very small CM Chondrite falls [only 3 have masses < 100 g] and one of only 15 witnessed CM falls. CM Chondrites are the most numerous of the 8 carbonaceous chondrite groups. By 2015 records for ~500 CM meteorites are reported, but most of them are small or tiny Antarctic finds and may represent a smaller number of individual meteorite falls.
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:
ⓘ Iron Formula: Fe Description: Ni-poor (Ni ≤2%) |
ⓘ 'Meteoritic Iron' Description: Meteoritic iron- Kamacite composition Ni ~ 5%, Co ~0.3%, Cr ~0.7%, P ~0.8% [mol%] |
ⓘ Pentlandite Formula: (NixFey)Σ9S8 |
ⓘ Pyrrhotite Formula: Fe1-xS Description: Often accompanied by peripheral pentlandite and infrequent exsolved troilite |
ⓘ 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 |
ⓘ Tochilinite Formula: Fe2+5-6(Mg,Fe2+)5S6(OH)10 |
ⓘ Troilite Formula: FeS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
ⓘ | Iron | 1.AE.05 | Fe |
Group 2 - Sulphides and Sulfosalts | |||
ⓘ | Pentlandite | 2.BB.15 | (NixFey)Σ9S8 |
ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
ⓘ | Troilite | 2.CC.10 | FeS |
ⓘ | Tochilinite | 2.FD.35 | Fe2+5-6(Mg,Fe2+)5S6(OH)10 |
Unclassified | |||
ⓘ | 'Meteoritic Iron' | - | |
ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Tochilinite | Fe2+5-6(Mg,Fe2+)5S6(OH)10 |
H | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
O | Oxygen | |
O | ⓘ Tochilinite | Fe2+5-6(Mg,Fe2+)5S6(OH)10 |
O | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
Mg | Magnesium | |
Mg | ⓘ Tochilinite | Fe2+5-6(Mg,Fe2+)5S6(OH)10 |
Si | Silicon | |
Si | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
S | Sulfur | |
S | ⓘ Pentlandite | (NixFey)Σ9S8 |
S | ⓘ Pyrrhotite | Fe1-xS |
S | ⓘ Tochilinite | Fe2+5-6(Mg,Fe2+)5S6(OH)10 |
S | ⓘ Troilite | FeS |
Fe | Iron | |
Fe | ⓘ Iron | Fe |
Fe | ⓘ Pentlandite | (NixFey)Σ9S8 |
Fe | ⓘ Pyrrhotite | Fe1-xS |
Fe | ⓘ Tochilinite | Fe2+5-6(Mg,Fe2+)5S6(OH)10 |
Fe | ⓘ Troilite | FeS |
Ni | Nickel | |
Ni | ⓘ Pentlandite | (NixFey)Σ9S8 |
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Mazatzal DomainDomain
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