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Siderazot

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Pictures (6 Images total)

Views (Image: 1255725563): 2162

Siderazot auf Lava

Größe des Aggregates: 3 mm; Fundort: Somma-Vesuv-Komplex, Neapel, Kampanien (Campania), Italien

Maurice de Graaf

Contribution: slugslayer 2009-10-16

Locality: Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien

Views (Image: 1573025669): 337

Siderazot

Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex. Bildbreite 0,8 mm

Collection:

Ulrich Baumgärtl

Contribution: Ulrich Baumgärtl 2019-11-06

Locality: Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien

Views (Image: 1573025859): 332

Siderazot

Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex. Bildbreite 0,8 mm

Collection:

Ulrich Baumgärtl

Contribution: Ulrich Baumgärtl 2019-11-06

Locality: Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien

Views (Image: 1573026136): 326

Siderazot (Nadel)

Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex. Bildbreite 0,4 mm

Collection:

Ulrich Baumgärtl

Contribution: Ulrich Baumgärtl 2019-11-06

Locality: Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien

Views (Image: 1573026345): 325

Siderazot

Italien/Kampanien (Campania), Region/Neapel, Provinz/Somma-Vesuv-Komplex. Bildbreite 0,7mm

Collection:

Ulrich Baumgärtl

Contribution: Ulrich Baumgärtl 2019-11-06

Locality: Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien

Views (Image: 1088962978): 1685

Siderazot

Sublimationsschicht auf vulkanischer Lapilli; Fundort: Grube Pollena, Vesuv, Kampanien, Italien; Bildausschnitt 5 x 5 mm

uwe

Contribution: Mineralienatlas 2004-07-04

Locality: Pollena-Trocchia / Monte Somma / Somma-Vesuv-Komplex / Neapel, Provinz / Kampanien (Campania), Region / Italien

More images

Collectors Summary

Color

silberweiß

Lustre

Metallglanz

Solubility

+ Säuren

Crystal System

hexagonal, P6₃/mmc

Chemism

Chemical formula

Fe₃N_1.33

Additional chem. information

laut CNMNC:FeN_x {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:

Fe₃N_1.33

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

Search for minerals with similar chemistry

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 (Å³)	82.801
X-Ray Powder Diffraction	2.346(100), 2.196(100), 2.061(100), 1.596(100), 1.349(100), 1.235(100)
	Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

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Physical Properties

Density (g/cm³)	3.147 (gemessen) 3.08 (berechnet)
	3.733 ( ρ calc. Mineralienatlas )
Instability	+ Säuren

(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, Fe₃N_1.33, 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

Fe₃N_1.33

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	Fe₃N_1.33 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	Fe₃N_1.33 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	Pb_0.7Hg_0.3 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	Fe_1.5Cr_0.2 kubisch : m3m : Pm3m	01.01.12.02
Ferchromide	Cr₃Fe_1-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 orthorhombisch	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 kubisch	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	Fe₃N_1.33 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

Other languages

German	Siderazot
English	Siderazot
Spanish	Siderazot
French	Siderazot
Russian	Сидеразот
Simplified Chinese	氮铁矿

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 Strahlen.org - search for: Siderazot Mineralienatls.de (Forum) - 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
Edelsteine Neuburg - Gundolf Fischer - search for: Siderazot

Locations with GPS information