Lombard meteorite, Broadwater Co., Montana, USAi
| Regional Level Types | |
|---|---|
| Lombard meteorite | Meteorite Fall Location |
| Broadwater Co. | County |
| Montana | State |
| USA | Country |
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Latitude & Longitude (WGS84):
46° 6' North , 111° 24' West
Latitude & Longitude (decimal):
Locality type:
Meteorite Class:
Meteoritical Society Class:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Ponderosa Pines | 336 (2017) | 8.0km |
| Toston | 108 (2006) | 8.7km |
| Three Forks | 1,926 (2017) | 25.9km |
| Townsend | 1,959 (2017) | 26.1km |
| Manhattan | 1,631 (2017) | 27.6km |
Iron, hexahedrite (IIAB)
Find 1953, 7 kg.
A weathered metallic mass (5.65% Ni) was recovered and later identified, acquired, and distributed by Harvey Nininger. Before sectioning, the entire mass was a single kamacite crystal profusely decorated by rhabdite prisms and lamellae. Small troilite-daubréelite inclusions are present in some sections. Tiny Carlsbergite plates are also found within the kamacite. Numerous Neumann bands are present and some cold annealing may have transpired before the meteoroid encountered the earth.
Much of the mass was distributed in 5 mm thick slices so that today no one museum appears to hold as much as 10% of the original mass.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
8 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:
| ⓘ Carlsbergite Formula: CrN Reference: H. J. Axon, J. Kinder, C. W. Haworth and J. W. Horsfield (1981) Carlsbergite, CrN, in Troilite, FeS, of the Sikhote Alin Meteoritic Iron. Mineralogical Magazine 44:107-109. |
| ⓘ Cohenite Formula: Fe3C Reference: Axon, H. J. & Waine, C. V. (1972) A Metallographic Study of Some Hexahedrites: Mineralogical Magazine 38 (298): 725-735. (June 1972). |
| ⓘ Daubréelite Formula: Fe2+Cr3+2S4 Reference: Axon, H. J. & Waine, C. V. (1972) A Metallographic Study of Some Hexahedrites: Mineralogical Magazine 38 (298): 725-735. (June 1972). |
| ⓘ Iron Formula: Fe Reference: H. J. Axon, J. Kinder, C. W. Haworth and J. W. Horsfield (1981) Carlsbergite, CrN, in Troilite, FeS, of the Sikhote Alin Meteoritic Iron. Mineralogical Magazine 44:107-109.; Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages. |
| ⓘ Iron var. Kamacite Formula: (Fe,Ni) Reference: H. J. Axon, J. Kinder, C. W. Haworth and J. W. Horsfield (1981) Carlsbergite, CrN, in Troilite, FeS, of the Sikhote Alin Meteoritic Iron. Mineralogical Magazine 44:107-109.; Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages. |
| ⓘ Niningerite Formula: (Mg,Fe2+,Mn2+)S Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages. |
| ⓘ Schreibersite Formula: (Fe,Ni)3P Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages.; Axon, H. J. & Waine, C. V. (1972) A Metallographic Study of Some Hexahedrites: Mineralogical Magazine 38 (298): 725-735. (June 1972). |
| ⓘ Taenite Formula: (Fe,Ni) Reference: Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages.; Axon, H. J. & Waine, C. V. (1972) A Metallographic Study of Some Hexahedrites: Mineralogical Magazine 38 (298): 725-735. (June 1972). |
| ⓘ Troilite Formula: FeS Reference: H. J. Axon, J. Kinder, C. W. Haworth and J. W. Horsfield (1981) Carlsbergite, CrN, in Troilite, FeS, of the Sikhote Alin Meteoritic Iron. Mineralogical Magazine 44:107-109.; Axon, H. J. & Waine, C. V. (1972) A Metallographic Study of Some Hexahedrites: Mineralogical Magazine 38 (298): 725-735. (June 1972). |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Carlsbergite | 1.BC.15 | CrN |
| ⓘ | Cohenite | 1.BA.05 | Fe3C |
| ⓘ | 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 | |||
| ⓘ | Daubréelite | 2.DA.05 | Fe2+Cr3+2S4 |
| ⓘ | Niningerite | 2.CD.10 | (Mg,Fe2+,Mn2+)S |
| ⓘ | Troilite | 2.CC.10 | FeS |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Cohenite | Fe3C |
| N | Nitrogen | |
| N | ⓘ Carlsbergite | CrN |
| Mg | Magnesium | |
| Mg | ⓘ Niningerite | (Mg,Fe2+,Mn2+)S |
| P | Phosphorus | |
| P | ⓘ Schreibersite | (Fe,Ni)3P |
| S | Sulfur | |
| S | ⓘ Troilite | FeS |
| S | ⓘ Niningerite | (Mg,Fe2+,Mn2+)S |
| S | ⓘ Daubréelite | Fe2+Cr23+S4 |
| Cr | Chromium | |
| Cr | ⓘ Carlsbergite | CrN |
| Cr | ⓘ Daubréelite | Fe2+Cr23+S4 |
| Mn | Manganese | |
| Mn | ⓘ Niningerite | (Mg,Fe2+,Mn2+)S |
| Fe | Iron | |
| Fe | ⓘ Iron var. Kamacite | (Fe,Ni) |
| Fe | ⓘ Troilite | FeS |
| Fe | ⓘ Taenite | (Fe,Ni) |
| Fe | ⓘ Schreibersite | (Fe,Ni)3P |
| Fe | ⓘ Niningerite | (Mg,Fe2+,Mn2+)S |
| Fe | ⓘ Cohenite | Fe3C |
| Fe | ⓘ Daubréelite | Fe2+Cr23+S4 |
| Fe | ⓘ Iron | Fe |
| Ni | Nickel | |
| Ni | ⓘ Iron var. Kamacite | (Fe,Ni) |
| Ni | ⓘ Taenite | (Fe,Ni) |
| Ni | ⓘ Schreibersite | (Fe,Ni)3P |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Axon, H. J. & Waine, C. V. (1972) A Metallographic Study of Some Hexahedrites: Mineralogical Magazine 38 (298): 725-735. (June 1972).
Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam, London: New York. 245 pages.
Buchwald, V. F. (1975) Handbook of Iron Meteorites. University of California Press. 1418 pages.
Grady, M. M. (2000) Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, New York, Oakleigh, Madrid, Cape Town. 690 pages.
Wasson, J.T., Huber, H. & Malvin, D.J. (2007) Formation of IIAB iron meteorites. Geochim. Cosmochim. Acta 71, 760–781.
External Links
http://www.lpi.usra.edu/meteor/metbull.php = Meteoritical Bulletin Database
http://www.minersoc.org/pages/Archive-MM/Volume_38/38-298-725.pdf
http://evols.library.manoa.hawaii.edu/bitstream/handle/10524/35691/vol2-Loc-Mag(LO).pdf#page=3
http://www.minersoc.org/pages/Archive-MM/Volume_38/38-298-725.pdf
http://evols.library.manoa.hawaii.edu/bitstream/handle/10524/35691/vol2-Loc-Mag(LO).pdf#page=3
Other Regions, Features and Areas containing this locality
North America
- Rocky MountainsMountain Range
North America PlateTectonic Plate
- Bozeman BasinBasin
- Great Falls DomainDomain
USA
- Montana
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