Chromferide Mineral Data (original) (raw)

General Chromferide Information

Help on Chemical Formula: Chemical Formula:

Fe3Cr1-x (x=0,6)

Help on Composition: Composition:

Molecular Weight = 188.34 gm

Chromium 11.04 % Cr

Iron 88.96 % Fe

______

100.00 %

Help on Empirical Formula: Empirical Formula:

Fe0+3Cr0.4

Help on Environment: Environment:

In quartz veins within brecciated amphibolites and shists.

Help on IMA Status: IMA Status:

Approved IMA 1986

Help on Locality: Locality:

Southern Ural Mountains, Russia. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for the chemical composition, CHROMium and FERrum.

Chromferide Image

Click Here for Larger Chromferide Image in a New Browser Window Images:

Click Here for Larger Chromferide Image Chromferide Comments: Irregular nugget of chromferide. Location: Verchnevinsk, Ural, Russia.Scale: Nugget Size 1.5 mm. © Thomas Witzke

Chromferide Crystallography

Help on Cell Dimensions: Cell Dimensions:

a = 2.859, Z = 0.5; V = 23.37 Den(Calc)= 6.69

Help on Crystal System: Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: P m3m

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 1.16(1), 2.02(1), 1.43(0.8),

Physical Properties of Chromferide

Help on Cleavage: Cleavage:

None

Help on Color: Color:

Gray white.

Help on Diaphaneity: Diaphaneity:

Opaque

Help on Hardness: Hardness:

4 - Fluorite

Help on Luster: Luster:

Metallic

Help on Magnetism: Magnetism:

Ferromagnetic

Optical Properties of Chromferide

Help on Reflectivity Reflectivity

Standardized Intensity (100%) Reflection Spectra of Chromferide in Air

λ R ∑ R(λ)
440 nm 50.40
460 nm 50.90
480 nm 51.40
500 nm 52.60
520 nm 53.00
540 nm 55.30
560 nm 56.50
580 nm 56.90
600 nm 57.90
620 nm 58.30
640 nm 59.00
660 nm 60.00
680 nm 60.70
700 nm 60.80

Calculated Relative Intensity Colors of Chromferide in Air

RelativeIntensity 0% 20% 40% 60% 80% 100% 120% 140% 160% 180%
R

Calculated Properties of Chromferide

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=6.22 gm/cc
note: Specific Gravity of Chromferide =6.69 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Help on Photoelectric: Photoelectric:

PEChromferide = 30.18 barns/electron
U=PEChromferide x rElectron Density= 187.84 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Chromferide is Not Radioactive

Chromferide Classification

Help on Dana Class: Dana Class:

01.01.12.02 (01)Native Elements

(01.01)with metallic elements other than the platinum group

(01.01.12)Dana Group

01.01.12.01 Chromium Cr I m3m 4/m 3 2/m

01.01.12.02 Chromferide Fe3Cr1-x(x=0,6) P m3m 4/m 3 2/m

01.01.12.03 Ferchromide Cr3Fe1-x(x=0,6) P m3m 4/m 3 2/m

Help on Strunz Class: Strunz Class:

01.AE.15 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.15 Chromferide Fe3Cr1-x(x=0,6) P m3m 4/m 3 2/m

01.AE.15 Ferchromide Cr3Fe1-x(x=0,6) P m3m 4/m 3 2/m

01.AE.15 Wairauite CoFe P m3m 4/m 3 2/m

Other Chromferide Information

Help on References: References:

NAME( AntBidBlaNic1) PHYS. PROP.(Am.Min.,Vol.73,p190,1988) OPTIC PROP.(AntBidBlaNic1)

Help on See Also: See Also:

Links to other databases for Chromferide :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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

Chromferide

Fe3Cr1-x (x=0,6)
Dana No: 01.01.12.02 Strunz No: 01.AE.15
Locality:

Notes: