Siderazot Mineral Data

Siderazot Mineral Data +

General Siderazot Information

Chemical Formula:

Fe5N2

Composition:

Molecular Weight = 307.25 gm

Iron 90.88 % Fe

Nitrogen 9.12 % N

______

100.00 %

Empirical Formula:

Fe⁰⁺₅N₂

Environment:

Thin coating on lava.

IMA Status:

Valid Species (Pre-IMA) 1876

Locality:

Mt. Etna and Mt. Vesuvius, Italy. Link to MinDat.org Location Data.

Name Origin:

Named for its composition (Greek, "sideros" = iron).

Synonym:

ICSD 79983

PDF 3-925

Siderazot Image

Images:

Siderazot

Comments: Bluish siderazot coatings on scoria lava rock.
Location: Eruption of 1941, Vesuvius, Campania, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Siderazot Crystallography

Axial Ratios:

a:c = 1:0.93394

Cell Dimensions:

a = 4.678, c = 4.369, Z = 0.5; V = 82.80 Den(Calc)= 3.08

Crystal System:

Hexagonal - TrapezohedralH-M Symbol (6 2 2) Space Group: P 6₃22

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.34(1), 2.19(1), 2.06(1),1.59(1), 1.34(1), 1.24(1), 1.15(1), 1.13(1),

Physical Properties of Siderazot

Color:

Silver white.

Density:

3.147

Diaphaniety:

Opaque

Habit:

Encrustations - Forms crust-like aggregates on matrix.

Habit:

Thin - Flat dimensioned crystals.

Luster:

Metallic

Calculated Properties of Siderazot

Electron Density:

r_electron=2.89 gm/cc
note: r_Siderazot=3.08 gm/cc.

Fermion Index

Fermion Index = 0.1101
Boson Index = 0.8899

Photoelectric:

PE_Siderazot= 28.04 barns/electron
U=PE_Siderazot x r_electron= 80.96 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Siderazot is Not Radioactive

Siderazot Classification

Dana Class:

1.1.18.1 (1)Native Elements

(1.1)with metallic elements other than the platinum group

(1.1.18)Dana Group

1.1.18.1 Siderazot Fe5N2 P 6₃22 6 2 2

1.1.18.2 Roaldite (Fe,Ni)4N P 43m 4 3m

Strunz Class:

I/A.10-40 I - Elements

I/A - Metallic and intermetallic compounds, Carbides, Nitrides, Phosphides and Silicides

I/A.10 - Osbornite-Sinoite series

I/A.10-10 Osbornite TiN F m3m 4/m 3 2/m

I/A.10-20 Carlsbergite CrN F m3m 4/m 3 2/m

I/A.10-30 Roaldite (Fe,Ni)4N P 43m 4 3m

I/A.10-40 Siderazot Fe5N2 P 6₃22 6 2 2

I/A.10-45 Nierite Si3N4 P 3₁c 3m

I/A.10-50 Sinoite Si2N2O C mc2₁ mm2

Other Siderazot Information

References:

NAME( Dana8) PHYS. PROP.(Dana8)

See Also:

Links to other databases for Siderazot :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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

Siderazot

Fe5N2
Dana No: 1.1.18.1 Strunz No: I/A.10-40
Locality:

Notes: