Mineralogy Database

Kamacite Mineral Data

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General Kamacite Information

Help on Chemical  Formula: Chemical Formula: alpha-(Fe,Ni)
Help on Composition: Composition: Molecular Weight = 56.13 gm
   Iron    89.54 %  Fe
   Nickel  10.46 %  Ni
          ______ 
          100.00 % 
Help on Empirical Formula: Empirical Formula: Fe0+0.9Ni0.1
Help on Environment: Environment: Major constituent of iron meteorites. Kamasite (1861) fails the 50% rule so it is a Ni-rich iron.
Help on IMA Status: IMA Status: Discredited IMA 2006 - Valid Species (Pre-IMA) 1861
Help on Locality: Locality: Disko Island, Uivfaq, Blaafjeld, Greenland Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for "shaft" or "lath".
Help on Name Pronunciation: Name Pronunciation: Kamacite Say KAMACITE
Help on Synonym: Synonym: Plessite - Taenite and Kamacite
 

Kamacite Image

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  Carlsbergite   Kamacite

Comments: Polished section showing a small light gray elongated inclusion of carlsbergite in massive kamacite.
Location: Kenton County meteorite, Kenton Co., Kentucky, USA. Scale: Picture size 0.08 mm.
© Thomas Witzke / Abraxas-Verlag

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  Nickelphosphide   Kamacite

Comments: Small inclusion of nickelphosphide in massive kamacite.
Location: Kenton County meteorite, Kenton Co., Kentucky, USA. Scale: Picture size 0.09 mm.
© Thomas Witzke / Abraxas-Verlag

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  Troilite   Cohenite   Kamacite   Taenite

Comments: Brown masses of troilite, with white cohenite, in kamacite/taenite matrix, in meteorite (polished section).
Location: Meteor Crater, Canyon Diablo, Coconino County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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  Kamacite   Taenite   Troilite

Comments: Polished and acid etched slice, with crust, illustrating Widmanstaaten lines, with taenite darker areas between kamacite crystals, with tarnished troilite inclusions, in fine octahedrite meteorite.
Location: Gibeon Meteorite, found 1836, Great Namaqualand, Hardap, Namibia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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  Melliniite   Kamacite

Comments: Reflected-light image displaying an anhedral fragment of creamy-yellowish melliniite(1) associated with kamacite (2). AmMin, v91, p453.
Location: Northwest Africa 1054 acapulcoite. Scale: See Image.
© American Mineralogist

Kamacite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 8.603, Z = 54; V = 636.72 Den(Calc)= 7.90
Help on Crystal System: Crystal System: Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F m3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.03(1), 1.967(0.6), 1.435(0.3),
 

Physical Properties of Kamacite

Help on Cleavage: Cleavage: {???} Indistinct
Help on Color: Color: Iron black, Steel gray.
Help on Density: Density: 7.9
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Hackly - Jagged, torn surfaces, (e.g. fractured metals).
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Metallic
Help on Streak: Streak: gray
 

Calculated Properties of Kamacite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=7.37 gm/cc
note: Specific Gravity of Kamacite =7.90 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEKamacite = 32.05 barns/electron
U=PEKamacite x rElectron Density= 236.35 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kamacite is Not Radioactive
 

Kamacite Classification

Help on  Dana Class: Dana Class: 01.01.11.01 (01)Native Elements
  (01.01)with metallic elements other than the platinum group
  (01.01.11)Iron-Nickel group
 
01.01.11.00 Iron! Fe I m3m 4/m 3 2/m
 
01.01.11.01 Kamacite? alpha-(Fe,Ni) F m3m 4/m 3 2/m
 
01.01.11.02 Taenite gamma-(Fe,Ni) F m3m 4/m 3 2/m
 
01.01.11.03 Tetrataenite FeNi P 4/mmm 4/m 2/m 2/m
 
01.01.11.04 Awaruite Ni2FetoNi3Fe P m3m 4/m 3 2/m
 
01.01.11.05 Nickel Ni F m3m 4/m 3 2/m
 
01.01.11.06 Wairauite CoFe P m3m 4/m 3 2/m
Help on  Strunz Class: Strunz Class: 01.AE.05 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
  01.A - Metals and Intermetallic Alloys
  01.AE -Iron-chromium family
 
01.AE.05 Chromium Cr I m3m 4/m 3 2/m
 
01.AE.05 Kamacite? alpha-(Fe,Ni) F m3m 4/m 3 2/m
 
01.AE.05 Iron Fe I m3m 4/m 3 2/m
 

Other Kamacite Information

Help on References: References: NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Kamacite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Print or Cut-and-Paste your Kamacite Specimen Label here :

Kamacite

alpha-(Fe,Ni)
Dana No: 01.01.11.01 Strunz No: 01.AE.05
Locality:

 

Notes:

 

 
   
 


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