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Siderazot

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Somma-Vesuvius Complex, Naples Province, Campania, Italy
© Marco Barsanti

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Formula:
Fe
 
5
N
 
2
System:HexagonalColour:White, silver-white
Lustre:Metallic
Name:From Greek "sideros", iron, plus "azoton", nitrogen, referring to its composition.


Apparently, there is no modern confirmation of the chemical composition.
This species might be questionable http://www.mindat.org/mesg-7-73751.html).

Classification of Siderazot

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:1/A.10-40
Nickel-Strunz 10th (pending) edition ID:1.BC.10

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides and Phosphides
C : Nitrides
Dana 7th edition ID:1.1.27.1
Dana 8th edition ID:1.1.18.1

1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group
Hey's CIM Ref.:2.6

2 : Carbides, Nitrides, Silicides and Phosphides
mindat.org URL:http://www.mindat.org/min-3646.html
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Type Occurrence of Siderazot

Type Locality:Mt Etna, Etna Volcanic Complex, Catania Province, Sicily, Italy
Year of Discovery:1876

Physical Properties of Siderazot

Lustre:Metallic
Colour:White, silver-white

Crystallography of Siderazot

Crystal System:Hexagonal
Cell Parameters:a = 4.67Å, c = 4.36Å
Ratio:a:c = 1 : 0.934
Unit Cell Volume:V 82.35 ų (Calculated from Unit Cell)

Chemical Properties of Siderazot

Formula:
Fe
 
5
N
 
2
Essential elements:Fe, N
All elements listed in formula:Fe, N

Relationship of Siderazot to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
1.BC.05Roaldite
(Fe,Ni)
 
4
N
1.BC.15Carlsbergite
CrN
1.BC.15Osbornite
TiN
1.BC.20Unnamed (Gallium nitride)
GaN
Related Minerals - Hey's Index Grouping:

- +
2.1Moissanite
SiC
2.2Sinoite
Si
 
2
N
 
2
O
2.3Osbornite
TiN
2.4Tongbaite
Cr
 
3
C
 
2
2.5Carlsbergite
CrN
2.7Gupeiite
Fe
 
3
Si
2.8Xifengite
Fe
 
5
Si
 
3
2.9Khamrabaevite
(Ti,V,Fe)C
2.10Haxonite
(Fe,Ni)
 
23
C
 
6
2.11Cohenite
(Fe,Ni,Co)
 
3
C
2.12Roaldite
(Fe,Ni)
 
4
N
2.13Suessite
(Fe,Ni)
 
3
Si
2.14Schreibersite
(Fe,Ni)
 
3
P
2.15Barringerite
(Fe,Ni)
 
2
P
2.16Perryite
(Ni,Fe)
 
5
(Si,P)
 
2
Related Minerals - Dana Grouping):

- +
1.1.27.2Roaldite
(Fe,Ni)
 
4
N

Other Names for Siderazot

Synonyms:
Silvestrite
Other Languages:
German:Silvestrit
Russian:Сидеразот
Spanish:Silvestrita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Siderazot

Reference List:Silvestri O. (1876), Ann. Phys. Chem., 157, 165.

Hendricks, S.B. and P.R. Kosting (1930) XXXV. The crystal structure of Fe2P, Fe2N, Fe3N, and FeB. Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 74: 511–533.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume I: 126.

Internet Links for Siderazot

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    Localities for Siderazot

    Hide Locality List
    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Italy
     
    • Campania
      • Naples Province
        • Somma-Vesuvius Complex
          • Monte Somma
            • Ercolano
    		Russo M., Punzo I., 2004. I minerali del Somma-Vesuvio. AMI.
            • Pollena - Trocchia area
    		Russo M., Punzo I., 2004. I minerali del Somma-Vesuvio. AMI.
    Russo, M., Punzo, I. (2004): I Minerali del Somma-Vesuvio, AMI
    Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume I: 126; Russo, M., 2006: I minerali di formazione fumarolica della grande eruzione vesuviana del 1906
    • Sicily
      • Catania Province
        • Etna Volcanic Complex
    		Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume I: 126.
    Mineral and/or Locality
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