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Xifengite

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Is River, Isovsky District, Ekaterinburgskaya (Sverdlovskaya) Oblast', Middle Urals, Urals Region, Russia
© Pavel M. Kartashov

Formula:
Fe
 
5
Si
 
3
System:HexagonalColour:Grey, Steel-black
Lustre:MetallicHardness:5
Name:Named after "Xifengkon", an eastern passageway of the Great Wall in the Yan Mts (Yan Shan), where the type locality is situated.
This page provides mineralogical data about Xifengite.

Classification of Xifengite

IMA status:Approved 1983
Strunz 8th edition ID:1/A.12-40
Nickel-Strunz 10th (pending) edition ID:1.BB.05

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides and Phosphides
B : Silicides
Dana 7th edition ID:1.1.33.4
Dana 8th edition ID:1.1.23.3

1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group
Hey's CIM Ref.:2.8

2 : Carbides, Nitrides, Silicides and Phosphides
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Type Occurrence of Xifengite

Type Locality:Yanshan meteorite, Yan Mts (Yan Shan), Chengde Prefecture, Hebei Province, China
Year of Discovery:1984

Physical Properties of Xifengite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Grey, Steel-black
Streak:Black
Hardness (Mohs):5

Crystallography of Xifengite

Crystal System:Hexagonal
Cell Parameters:a = 6.75Å, c = 4.72Å
Ratio:a:c = 1 : 0.699
Unit Cell Volume:V 186.24 ų (Calculated from Unit Cell)

Chemical Properties of Xifengite

Formula:
Fe
 
5
Si
 
3
Essential elements:Fe, Si
All elements listed in formula:Fe, Si

Relationship of Xifengite to other Species

Related Minerals - Nickel-Strunz Grouping):
1.BB.05Gupeiite
Fe
 
3
Si
1.BB.05Suessite
(Fe,Ni)
 
3
Si
1.BB.05Hapkeite
Fe
 
2
Si
1.BB.10Perryite
(Ni,Fe)
 
5
(Si,P)
 
2
1.BB.15Fersilicite
FeSi
1.BB.20Ferdisilicite
FeSi
 
2
1.BB.25Luobusaite
Fe
 
0.84
Si
 
2
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
2.6Siderazot
Fe
 
5
N
 
2
2.7Gupeiite
Fe
 
3
Si
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):
1.1.33.1Suessite
(Fe,Ni)
 
3
Si
1.1.33.2Fersilicite
FeSi
1.1.33.3Ferdisilicite
FeSi
 
2
1.1.33.5Gupeiite
Fe
 
3
Si
1.1.33.6Hapkeite
Fe
 
2
Si

Other Names for Xifengite

Synonyms:
IMA1983-086
German names:
Xifengit
Russian names:
Цзифенгит
Spanish names:
Xifengita

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 Xifengite

Reference List:Yu Zuxiang (1984): Two new minerals gupeiite and xifengite in cosmic dusts from Yanshan. Acta Petrologica Mineralogica et Analytica 3(3), 231-238 (in Chinese with English abstract). - American Mineralogist (1986), 71, 228 (abstract).

Chemical Abstracts 103, 90560.

Internet Links for Xifengite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Xifengite in the Natural History Museum (London) online catalogue
  • Xifengite details from Handbook of Mineralogy (PDF)
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    Localities for Xifengite

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    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.
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    (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.
    China
     
    • Hebei Province
      • Chengde Prefecture
        • Yan Mts (Yan Shan)
    		Yu Zuxiang (1984): Acta Petrologica Mineralogica et Analytica 3(3), 231-238.
    Pacific Ocean
     
    • Mid-Pacific Rise
    		[AmMin 87:182]
    Russia
     
    • Urals Region
      • Middle Urals
        • Ekaterinburgskaya (Sverdlovskaya) Oblast'
          • Isovsky District
    		P.M. Kartashov data
    Mineral and/or Locality
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