| Chengdeite Mineral Data |
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- 1.2.5.1 Isoferroplatinum (Pt,Pd)3(Fe,Cu) P m3m 4/m 3 2/m
- 1.2.5.2 Rustenburgite (Pt,Pd)3Sn F m3m 4/m 3 2/m
- 1.2.5.3 Atokite (Pd,Pt)3Sn F m3m 4/m 3 2/m
- 1.2.5.4 Zvyagintsevite (Pd,Pt,Au)3(Pb,Sn) P m3m 4/m 3 2/m
- 1.2.5.5 Chengdeite Ir3Fe P m3m 4/m 3 2/m
- 1.2.5.6 Yixunite! Pt3In P m3m 4/m 3 2/m
- I/A.15-05 Chengdeite Ir3Fe P m3m 4/m 3 2/m
- I/A.15-10 Isoferroplatinum (Pt,Pd)3(Fe,Cu) P m3m 4/m 3 2/m
- I/A.15-20 Tetraferroplatinum PtFe P 4/mmm 4/m 2/m 2/m
- I/A.15-30 Tulameenite Pt2FeCu P 4/mm 4/m 2/m 2/m
- I/A.15-40 Ferronickelplatinum Pt2FeNi P 4/mmm 4/m 2/m 2/m
General Chengdeite Information |
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 Chemical Formula: |
Ir3Fe | ||
| Composition: |
Molecular Weight = 632.51 gm | ||
| Iron 8.83 % Fe | |||
| Iridium 91.17 % Ir | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
Ir3Fe0+ | ||
| Environment: |
In placer concentrations and chromate ores in ultrabasic rocks. | ||
| IMA Status: |
Approved IMA 1995 | ||
| Locality: |
At the branch of the Luan river (about 200 km NNE of Beijing) in Chengde County, Peoples Republic of China. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named after its locality. | ||
| Synonym: |
ICSD 56264 | ||
| IMA1994-023 | |||
| PDF 49-1824 | |||
Search for Chengdeite Images | |||
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Images:
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Chengdeite Crystallography |
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| Cell Dimensions: |
a = 3.792, Z = 1; V = 54.53 Den(Calc)= 19.26 | ||
| Crystal System: |
Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: P m3m | ||
| X Ray Diffraction: |
By Intensity(I/Io): 1.142(1), 1.094(0.8), 2.18(0.8), | ||
Physical Properties of Chengdeite |
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| Cleavage: |
None | ||
| Color: |
Steel black. | ||
| Density: |
19.3 | ||
| Diaphaniety: |
Opaque | ||
| Fracture: |
Hackly - Jagged, torn surfaces, (e.g. fractured metals). | ||
| Habit: |
Nuggets - Irregular lumps produced by stream transport of malleable metals. | ||
| Hardness: |
5 - Apatite | ||
| Luster: |
Metallic | ||
| Streak: |
black | ||
Calculated Properties of Chengdeite |
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| Electron Density: |
relectron=15.7 gm/cc |
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| Fermion Index |
Fermion Index = 0.00187 Boson Index = 0.99813 |
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| Photoelectric: |
PEChengdeite =1,393.05 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Chengdeite is Not Radioactive |
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Chengdeite Classification |
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| Dana Class: |
1.2.5.5 (1)Native Elements | ||
| (1.2)with platinum group metals and alloys | |||
| (1.2.5)Isoferroplatinum group (Space Group Pm3m) | |||
| Strunz Class: |
I/A.15-05 I - Elements | ||
| I/A - Metallic and intermetallic compounds, Platinum-Iron-compounds with Tin/Lead and related compunds | |||
| I/A.15 - Isoferroplatinum - Ferronickelplatinum series | |||
Other Chengdeite Information |
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| References: |
NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.81,1996) | ||
| See Also: |
Links to other databases for Chengdeite : 1 - Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Athena 4 - Google Images 5 - Google Scholar 6 - Handbook of Mineralogy (MinSocAm) 7 - Handbook of Mineralogy (UofA) 8 - MinDAT 9 - MinMax(Deutsch) 10 - MinMax(English) 11 - Mineralienatlas (Deutsch) 12 - QUT Mineral Atlas 13 - Ruff.Info Search for Chengdeite using: Visit our Advertisers for Chengdeite : AA Mineral SpecimensB & L Fine Minerals Dan Weinrich Fine Minerals Dan Weinrich Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals The GeoZone Wrights Rock Shop Translate Chengdeite Mineral Data : Ask about Chengdeite here : Print or Cut-and-Paste your Chengdeite Specimen Label here :
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