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Chengdeite

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Formula:
Ir3Fe
System:
Isometric
Colour:
Steel-black
Lustre:
Metallic
Hardness:
5
Name:
After the type locality at Gaotai village, in the Luan River (Luan He) valley, CHENGDE Prefecture, Hebei Province, China.
Found in chromite ores in ultrabasic rocks and associated placer deposits.

Classification of Chengdeite

Approved
1.AG.35

1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
G : PGE-metal alloys
Dana 7th ed.:
1.2.6.2
1.2.5.5

1 : NATIVE ELEMENTS AND ALLOYS
2 : Platinum Group Metals and Alloys
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Type Occurrence of Chengdeite

Physical Properties of Chengdeite

Metallic
Colour:
Steel-black
Hardness (Mohs):
5

Crystallography of Chengdeite

Crystal System:
Isometric

Optical Data of Chengdeite

Type:
Isotropic

Chemical Properties of Chengdeite

Formula:
Ir3Fe
Essential elements:
All elements listed in formula:

Relationship of Chengdeite to other Species

1.AG.05Hexaferrum(Fe,Os,Ru,Ir)
1.AG.05Garutiite(Ni,Fe,Ir)
1.AG.10Atokite(Pd,Pt)3Sn
1.AG.10Rustenburgite(Pt,Pd)3Sn
1.AG.10Zvyagintsevite(Pd,Pt,Au)3(Pb,Sn)
1.AG.15Taimyrite-I(Pd,Cu,Pt)3Sn
1.AG.15Tatyanaite(Pt,Pd,Cu)9Cu3Sn4
1.AG.20PaolovitePd2Sn
1.AG.25PlumbopalladinitePd3Pb2
1.AG.25Stannopalladinite(Pd,Cu)3Sn2
1.AG.30CabriitePd2CuSn
1.AG.35IsoferroplatinumPt3Fe
1.AG.40FerronickelplatinumPt2FeNi
1.AG.40TetraferroplatinumPtFe
1.AG.40TulameenitePt2CuFe
1.AG.45HongshiitePtCu
1.AG.45SkaergaarditePdCu
1.AG.50YixunitePt3In
1.AG.55DamiaoitePtIn2
1.AG.60NiggliitePtSn
1.AG.65BortnikovitePd4Cu3Zn
1.AG.70NielsenitePdCu3

Other Names for Chengdeite

Name in Other Languages:
German:Chengdeit
Simplified Chinese:承德矿
Spanish:Chengdeita

Other Information

Other Information:
Strong Magnetism
Malleable
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 Chengdeite

Reference List:
Yu Zuxiang (1995): Chengdeite - Ordered natural iron-iridium alloy. Acta Geologica Sinica 69(3), 215-20 (in Chinese, English abstract). - New Minerals 1995-1999, 42 (abstract).

Mineralogical Record 27, 202.

Internet Links for Chengdeite

Localities for Chengdeite

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.
China (TL)
 
  • Hebei Province
    • Chengde Prefecture
      • Chengde Co.
        • Gaositai
Zuxiang Yu (1995): Acta Geologica Sinica 69(3), 215-220
Zuxiang Yu (1995): Acta Geologica Sinica 69(3), 215-220
Russia
 
  • Far-Eastern Region
    • Koriak Autonomous Okrug
      • Koryak Upland (Koriak; Koriakskhiye)
        • Ust'-Bel'skii ultrabasic Massif
SEM by Excalibur Mineral Co.
Mineral and/or Locality  
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