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Siderazot

Pictures (6 Images total)

Siderazot auf Lava
Views (Image: 1255725563): 2115
Siderazot auf Lava

Größe des Aggregates: 3 mm; Fundort: Somma-Vesuv-Komplex, Neapel, Kampanien (Campania), Italien
Copyright: Maurice de Graaf
Contribution: slugslayer 2009-10-16
Locality: Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien
Siderazot
Views (Image: 1573025669): 305
Siderazot

Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex. Bildbreite 0,8 mm
Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2019-11-06
Locality: Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien
Siderazot
Views (Image: 1573025859): 294
Siderazot

Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex. Bildbreite 0,8 mm
Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2019-11-06
Locality: Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien
Siderazot (Nadel)
Views (Image: 1573026136): 290
Siderazot (Nadel)

Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex. Bildbreite 0,4 mm
Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2019-11-06
Locality: Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien
Siderazot
Views (Image: 1573026345): 293
Siderazot

Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex. Bildbreite 0,7mm
Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2019-11-06
Locality: Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien
Siderazot
Views (Image: 1088962978): 1668
Siderazot

Sublimationsschicht auf vulkanischer Lapilli; Fundort: Grube Pollena, Vesuv, Kampanien, Italien; Bildausschnitt 5 x 5 mm
Copyright: uwe
Contribution: Mineralienatlas 2004-07-04
Locality: Pollena-Trocchia / Monte Somma / Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien

Collectors Summary

Color silberweiß
Lustre Metallglanz
Solubility + Säuren
Crystal System hexagonal, P63/mmc

Chemism

Chem­ical formula

Fe3N1.33

Addi­tional chem. informa­tion

laut CNMNC:FeNx {x = 0.25 - 0.5}

Chem­ical com­po­si­tion

Eisen, Stickstoff

Unit weight: 186.1645376 u; Number of atoms in the formula: 4.33

Info

Empirical formula:

Fe3N1.33

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Nitrogen

N

10.01

1.33

30.72

14.0067200

18.6289376
Iron

Fe

89.99

3

69.28

55.8452000

167.5356000

Strunz 9th edi­tion incl. updates

1.BC.10

1: Elemente (Metalle, intermetallische Legierungen, Metalloide u. Nichtmetalle, Carbide, Silicide, Nitride u. Phosphide)
B: Metallische Kohlenstoffverbindungen (Carbide), Strickstoffverbindungen (Nitride) und Phosphorverbindungen (Phosphide)
C: Nitride
10:Siderazot-Gruppe

Lapis Clas­sifica­tion

I/A.10-040

I: ELEMENTE
A: Metalle und intermetallische Verbindungen
10: Carbide, Nitride, Phosphide und Silicide (metallartige Verbindungen)

Clas­sifica­tion by Hölzel

1.BC.100

1: ELEMENTS
B: Carbides, Silicides, Phosphides, Nitrides
C: Nitrides

Dana 8th edi­tion

01.01.18.01

01: Native Elements and Alloys
01: Native Elements with metallic elements other than the platinum group

IMA sta­tus

Erstbeschreibung vor CNMNC-Gründung (1959), CNMNC Newsletter 61, Eur. J. Mineral., 33 - Redefinition

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

silberweiß

Diaphane­ity (Trans­parency)

opak

Lus­tre

Metallglanz

Ri mean

Uniaxial

Crystallography

Crystal Sys­tem

hexagonal

Class (H-M)

6/mmm

Space Group number

194

Space Group

P63/mmc

Cell param­e­ters a (Å)

4.678

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

4.369

Cell param­e­ters a/b or c/a

0.934

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

120°

Z

1

Volumne (ų)

82.801

X-Ray Pow­der Diffrac­tion

2.346(100),
2.196(100),
2.061(100),
1.596(100),
1.349(100),
1.235(100)
XRD chart Siderazot

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

3.147 (gemessen) 3.08 (berechnet)

3.733 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+ Säuren

(Co-)Type locality

(Co-)Type locality

Italien/Sizilien (Sicilia), Region/Catania, Provinz/Ätna-Vulkankomplex/Berg Ätna (Etna, Mongibello)

Preface

Occurrences

auf Lava des Ausbruchs am Ätna im Jahr 1874

Name from

der Zusammensetzung; griechisch für Eisen "Sideros" und Stickstoff "azote"

Author (Name, Year)

Silvestri, 1876

Addi­tional Informa­tion

Das erste und einzige (Stand 2021) auf der Erde entstandene Mineral aus der Gruppe der Nitride

References

Sebastian Bette, Thomas Theye, Heinz-Jürgen Bernhardt, William P. Clark, Rainer Niewa: Confirmation of Siderazot, Fe3N1.33, the Only Terrestrial Nitride Mineral. Minerals Vol. 11, Nr. 3 (2021) Art.-Nr. 290.

Handbook of Mineralogy (Anthony et al.), 3 (1997), 509

Zeitschrift für Kristallographie 74 (1930), 511.

Silvestri, O.: Das Vorkommen des Stickstoffeisens unter den Fumarolen-Producten des Aetna und künstliche Darstellung dieser Verbindung. Poggendorfs Ann. Phys. Chem. 1876, 157, 165–172.

Silvestri, O.: La scombinazione chimica (dissociazione) applicata alla interpetrazione di alcuni fenomeni vulcanici; sintesi e analisi di un nuovo minerale trovato sull’Etna e di origine comune nei vulcani. Atti Accad. Gioenia Sci. Nat. 1876, 10, 17–27.

In the IMA List of Minerals siderazot is tagged as Q (i.e. questionable), for the reason that no data on that mineral have been published since the original description (Ann. Phys. Chem., 157, 165–172, 1876). Recently a detailed study on holotype siderazot, which is preserved in the Natural History Museum, London (UK), was carried out (Minerals, 11, art. 290, 2021). New chemical (EMPA) and structural (Rietveld) data were obtained. Moreover Raman and reflectance data are given. The complete set of data indicate that siderazot possesses the ε-Fe3N-type structure. In the light of these new data the status of siderazot can be changed from Q to Rd (i.e. redefined). The chemical formula of siderazot is slightly modified from FeNx (with x ≈0.25–0.5) to Fe3N1.33. - CNMNC Newsletter 61, Eur. J. Mineral., 33, https://doi.org/10.5194/ejm-33-299-2021, 2021.

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Siderazot

Fe3N1.33

hexagonal : 6/mmm : P63/mmc

1.BC.10

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Osbornite

TiN

kubisch : m3m : Fm3m

I/A.10-010

Carlsbergite

CrN

kubisch : m3m : Fm3m

I/A.10-020

Qingsongite

BN

kubisch : 43m : F43m

I/A.10-025

Roaldite

Fe4N

kubisch : m3m : Pm3m

I/A.10-030

Siderazot

Fe3N1.33

hexagonal : 6/mmm : P63/mmc

I/A.10-040

Nierite

Si3N4

trigonal : 3m : P31c

I/A.10-045

Sinoite

Si2N2O

orthorhombisch : mm2 : Cmc21

I/A.10-050

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Siderazot

Fe3N1.33

hexagonal : 6/mmm : P63/mmc

1.BC.100

Roaldite

Fe4N

kubisch : m3m : Pm3m

1.BC.110

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Leadamalgam

Pb0.7Hg0.3

tetragonal : 4/mmm : I4/mmm

 01.01.10.01

'Kamacite'

(Fe,Ni)

kubisch : m3m : Im3m

 01.01.11.01

Taenite

(Ni,Fe)

kubisch : m3m : Fm3m

 01.01.11.02

Tetrataenite

FeNi

monoklin : m : Pm

 01.01.11.03

Awaruite

Ni3Fe

kubisch : m3m : Pm3m

 01.01.11.04

Nickel

Ni

kubisch : m3m : Fm3m

 01.01.11.05

Wairauite

CoFe

kubisch : m3m : Pm3m

 01.01.11.06

Chromium

Cr

kubisch : m3m : Im3m

 01.01.12.01

Chromferide

Fe1.5Cr0.2

kubisch : m3m : Pm3m

 01.01.12.02

Ferchromide

Cr3Fe1-x

kubisch : m3m : Pm3m

 01.01.12.03

Tin

Sn

tetragonal : 4/mmm : I41/amd

 01.01.13.01

Indium

In

tetragonal : 4/mmm : I4/mmm

 01.01.14.01

Cupalite

(Cu,Zn)Al

 01.01.15.01

Khatyrkite

(Cu,Zn)Al2

tetragonal : 4/mmm : I4/mcm

 01.01.15.02

Cohenite

(Fe,Ni,Co)3C

orthorhombisch : mmm : Pnma

 01.01.16.01

Haxonite

(FeNi)23C6

 01.01.16.02

Isovite

(Cr,Fe)23C6

kubisch : m3m : Fm3m

 01.01.16.03

Tongbaite

Cr3C2

orthorhombisch : mmm : Pnma

 01.01.17.01

Florenskyite

Fe(Ti,Ni)P

orthorhombisch : mmm : Pnma

 01.01.17.02

Siderazot

Fe3N1.33

hexagonal : 6/mmm : P63/mmc

 01.01.18.01

Roaldite

Fe4N

kubisch : m3m : Pm3m

 01.01.18.02

Osbornite

TiN

kubisch : m3m : Fm3m

 01.01.19.01

Khamrabaevite

(Ti,V,Fe)C

kubisch : m3m : Fm3m

 01.01.19.02

Niobocarbide

(Nb,Ta)C

kubisch : m3m : Fm3m

 01.01.19.03

Tantalcarbide

TaC

kubisch : m3m : Fm3m

 01.01.19.04

Alternative Name

Silvestrit

Silvestrita

Silvestrite

CNMNC symbol

Symbol

Saz

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

 DeWikiPedia - search for: Siderazot
Google-Bilder-Suche - search for: Siderazot
Mineralogisch-Petrographisches-Institut Hamburg - search for: Siderazot

English pages

 Mindat - search for: Siderazot
Webmineral - search for:Siderazot
Handbook-of-Mineralogy - search for: Siderazot
RRUFF - Raman, XRD and other mineral data - search for: Siderazot
RRUFF - References and PDF downloads - search for: Siderazot
American-Mineralogist-Crystal-Structure-Database - search for: Siderazot
Athena - search for: Siderazot

Russian pages

 Webmineral.ru - search for: Сидеразот

Mineral Dealer

German pages

 hausen - Mineralgroßhandel - search for: Siderazot
Crystal-Treasure.com - search for: Siderazot
Bosse - search for: Siderazot

Locations with GPS information