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Ferchromide

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Formula:
Cr3Fe1-x
System:
Isometric
Colour:
Light gray
Lustre:
Metallic
Hardness:
Name:
For the chemical composition
Possibly an analogue of chromferide. Compare chemically similar 'UM1981-05-E:CrFe' and 'UM1981-06-E:CrFeNiSi'.


Classification of Ferchromide

Approved
1.AE.15

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
E : Iron-chromium family
Dana 7th ed.:
1.1.16.2
1.1.12.3

1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group
1.59

1 : Elements and Alloys (including the arsenides, antimonides and bismuthides of Cu, Ag and Au)

Physical Properties of Ferchromide

Metallic
Diaphaneity (Transparency):
Opaque
Colour:
Light gray
Hardness (Mohs):
Hardness (Vickers):
VHN100=900 kg/mm2
Density:
6.18 g/cm3 (Calculated)

Chemical Properties of Ferchromide

Formula:
Cr3Fe1-x
IMA Formula:
Cr1.5Fe0.2
Elements listed in formula:

Crystallography of Ferchromide

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Pm3m
Space Group Setting:
Pm3m
Cell Parameters:
a = 2.882(5) Å
Unit Cell Volume:
V 23.94 ų (Calculated from Unit Cell)
Z:
1
Morphology:
Small grains forming several hundred micron aggregates.

Type Occurrence of Ferchromide

Place of Conservation of Type Material:
Fernsman Museum
Geological Setting of Type Material:
Quartz veins in brecciated amphibolites and schist.

Relationship of Ferchromide to other Species

1.AE.VanadiumV
1.AE.05MolybdenumMo
1.AE.05ChromiumCr
1.AE.05IronFe
1.AE.05Kamacite(Fe,Ni)
1.AE.05TungstenW
1.AE.05UM2001-06-E:CrFeNiFe7Cr2Ni
1.AE.10Taenite(Fe,Ni)
1.AE.10TetrataeniteFeNi
1.AE.10AntitaeniteFe3Ni
1.AE.15ChromferideFe3Cr1-x (x=0.6)
1.AE.15WairauiteCoFe
1.AE.20AwaruiteNi3Fe
1.AE.25JedwabiteFe7(Ta,Nb)3
1.AE.30ManganeseMn
1.1CopperCu
1.2SilverAg
1.5GoldAu
1.6AuricuprideCu3Au
1.7Tetra-auricuprideAuCu
1.8ZincZn
1.9CadmiumCd
1.10DanbaiteCuZn2
1.11ZhanghengiteCuZn
1.12MercuryHg
1.13KolymiteCu7Hg6
1.14MoschellandsbergiteAg2Hg3
1.15EugeniteAg11Hg2
1.16SchachneriteAg1.1Hg0.9
1.17ParaschachneriteAg3Hg2
1.18LuanheiteAg3Hg
1.19Weishanite(Au,Ag)3Hg2
1.20IndiumIn
1.21AluminiumAl
1.22Khatyrkite(Cu,Zn)Al2
1.23Cupalite(Cu,Zn)Al
1.24DiamondC
1.25GraphiteC
1.26ChaoiteC
1.27LonsdaleiteC
1.28SiliconSi
1.29TinSn
1.30LeadPb
1.31AnyuiiteAuPb2
1.31NovodnepriteAuPb3
1.32LeadamalgamPb0.7Hg0.3
1.33ArsenicAs
1.34ArsenolampriteAs
1.35PaxiteCuAs2
1.36KoutekiteCu5As2
1.37DomeykiteCu3As
1.38Algodonite(Cu1-xAsx)
1.39NovákiteCu20AgAs10
1.40KutinaiteAg6Cu14As7
1.41AntimonySb
1.42StibarsenAsSb
1.43ParadocrasiteSb3As
1.44HorsforditeCu, Sb
1.45CuprostibiteCu2(Sb,Tl)
1.46Allargentum(Ag1-xSbx)
1.47AurostibiteAuSb2
1.48DyscrasiteAg3Sb
1.49BismuthBi
1.50MaldoniteAu2Bi
1.51SulphurS8
1.52RosickýiteS
1.53SeleniumSe
1.54TelluriumTe
1.55ChromiumCr
1.56RheniumRe
1.57IronFe
1.58ChromferideFe3Cr1-x (x=0.6)
1.60WairauiteCoFe
1.61NickelNi
1.62Kamacite(Fe,Ni)
1.63Taenite(Fe,Ni)
1.64TetrataeniteFeNi
1.65AwaruiteNi3Fe
1.66Palladium(Pd,Pt)
1.67PotaritePdHg
1.68PaolovitePd2Sn
1.69Stannopalladinite(Pd,Cu)3Sn2
1.70CabriitePd2CuSn
1.71Taimyrite(Pd,Cu,Pt)3Sn
1.72Atokite(Pd,Pt)3Sn
1.73Rustenburgite(Pt,Pd)3Sn
1.74Zvyagintsevite(Pd,Pt,Au)3(Pb,Sn)
1.75PlumbopalladinitePd3Pb2
1.76Osmium(Os,Ir,Ru)
1.77Iridium(Ir,Os,Ru)
1.82PlatinumPt
1.83HongshiitePtCu
1.84NiggliitePtSn
1.85IsoferroplatinumPt3Fe
1.86TetraferroplatinumPtFe
1.87TulameenitePt2CuFe
1.88FerronickelplatinumPt2FeNi
1.89Rhodium(Rh,Pt)

Other Names for Ferchromide

Name in Other Languages:
German:Ferchromid
Simplified Chinese:方铁铬矿
Traditional Chinese:方鐵鉻礦

Other Information

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

References for Ferchromide

Reference List:
American Mineralogist: 73: 191.

Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 115: 355-360.

Internet Links for Ferchromide

mindat.org URL:
https://www.mindat.org/min-1477.html
Please feel free to link to this page.

Localities for Ferchromide

This 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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Russia
 
  • Urals Region
    • Middle Urals
      • Sverdlovskaya Oblast'
        • Neiva river
Excalibur Mineral Co. specimen
    • Southern Urals
      • Orenburgskaya Oblast'
        • Kumak ore field
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Mineral and/or Locality  
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