Komagome meteorite, Bunkyō Ward, Tokyo Metropolis, Japani
| Regional Level Types | |
|---|---|
| Komagome meteorite | Meteorite Fall Location |
| Bunkyō Ward | Ward |
| Tokyo Metropolis | Prefecture |
| Japan | Country |
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Latitude & Longitude (WGS84):
35° 44' North , 139° 45' East
Latitude & Longitude (decimal):
Locality type:
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Tokyo | 8,336,599 (2017) | 7.2km |
| Kawaguchi | 468,565 (2017) | 8.7km |
| Shimotoda | 118,731 (2017) | 10.8km |
| Hatogaya-honchō | 53,062 (2014) | 11.1km |
| Sōka | 231,445 (2017) | 12.3km |
Iron meteorite, octahedrite (unclassified iron)
Fall, 18 April 1926; 238 g
This small iron meteorite is one of several witnessed iron falls that are presently incompletely classified ('unclassified'). Kamacite and taenite are sufficiently abundant to allow Komagome's characterization as an octahedrite as expected its Fe-Ni metal ( 8%Ni) composition. Schreibersite and troilite are also reported by Shima (1965). Phosphates are apparently present as well.
Only 49 witnessed falls of iron meteorites had been reported by the end of 2014. Apparently competent translations would make additional mineralogical information about several of these rare meteorites available in a more publicly accessible format.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
4 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 Reference: Grady, M. M. (2000) Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, New York, Oakleigh, Madrid, Cape Town. 690 pages. |
| ⓘ Iron var. Kamacite Formula: (Fe,Ni) Reference: Grady, M. M. (2000) Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, New York, Oakleigh, Madrid, Cape Town. 690 pages. |
| ⓘ Schreibersite Formula: (Fe,Ni)3P Description: In troilite interiors Reference: Shima, M. (1965). On the Komagome Meteorite. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 54 (6): 216-221. (Online English abstract available) |
| ⓘ Taenite Formula: (Fe,Ni) Reference: Grady, M. M. (2000) Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, New York, Oakleigh, Madrid, Cape Town. 690 pages. |
| ⓘ Troilite Formula: FeS Reference: Shima, M. (1965). On the Komagome Meteorite. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 54 (6): 216-221. (Online English abstract available)
|
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Iron | 1.AE.05 | Fe |
| ⓘ | var. Kamacite | 1.AE.05 | (Fe,Ni) |
| ⓘ | Schreibersite | 1.BD.05 | (Fe,Ni)3P |
| ⓘ | Taenite | 1.AE.10 | (Fe,Ni) |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Troilite | 2.CC.10 | FeS |
List of minerals for each chemical element
| P | Phosphorus | |
|---|---|---|
| P | ⓘ Schreibersite | (Fe,Ni)3P |
| S | Sulfur | |
| S | ⓘ Troilite | FeS |
| Fe | Iron | |
| Fe | ⓘ Schreibersite | (Fe,Ni)3P |
| Fe | ⓘ Troilite | FeS |
| Fe | ⓘ Iron var. Kamacite | (Fe,Ni) |
| Fe | ⓘ Taenite | (Fe,Ni) |
| Fe | ⓘ Iron | Fe |
| Ni | Nickel | |
| Ni | ⓘ Schreibersite | (Fe,Ni)3P |
| Ni | ⓘ Iron var. Kamacite | (Fe,Ni) |
| Ni | ⓘ Taenite | (Fe,Ni) |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Shima, M. (1965). On the Komagome Meteorite. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 54 (6): 216-221. (Online English Abstract available)
Grady, M. M. (2000) Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, New York, Oakleigh, Madrid, Cape Town. 690 pages.
External Links
http://www.lpi.usra.edu/meteor/metbull.php = Meteoritical Bulletin Database
http://www.lpi.usra.edu/meteor/metbull.php?sea=Komagome&sfor=names&ants=&falls=&valids=&stype=contains&lrec=50&map=ge&browse=&country=All&srt=name&categ=All&mblist=All&rect=&phot=&snew=0&pnt=Normal%20table&code=12343
https://www.jstage.jst.go.jp/article/ganko1941/54/6/54_6_216/_article
http://www.lpi.usra.edu/meteor/metbull.php?sea=Komagome&sfor=names&ants=&falls=&valids=&stype=contains&lrec=50&map=ge&browse=&country=All&srt=name&categ=All&mblist=All&rect=&phot=&snew=0&pnt=Normal%20table&code=12343
https://www.jstage.jst.go.jp/article/ganko1941/54/6/54_6_216/_article
Other Regions, Features and Areas containing this locality
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