Yixunite
A valid IMA mineral species
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About Yixunite
Formula:
Pt3In
Colour:
Steel black
Lustre:
Metallic
Hardness:
6
Specific Gravity:
18.21 (Calculated)
Crystal System:
Isometric
Name:
Named after its type locality, near the village of Damiao and the Yixun River, Hebei Province, China.
This page provides mineralogical data about Yixunite.
Unique Identifiers
Mindat ID:
7378
Long-form identifier:
mindat:1:1:7378:9
Similar Names
| Euxenite-(Y) | A valid IMA mineral species - grandfathered | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Euxenite-(Y)-Columbite solid solution | A solid-solution series between two end-member minerals |
IMA Classification of Yixunite
Approved
Approval year:
1995
First published:
1974
Classification of Yixunite
1.AG.50
1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
G : PGE-metal alloys
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.:
1.2.6.3
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Yix | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Yixunite
Metallic
Transparency:
Opaque
Colour:
Steel black
Streak:
Black
Hardness:
6 on Mohs scale
Hardness:
VHN50=573 - 681 kg/mm2 - Vickers
Tenacity:
Malleable
Cleavage:
None Observed
Fracture:
None observed
Density:
18.21 g/cm3 (Calculated)
Optical Data of Yixunite
Type:
Isotropic
Reflectivity:
| Wavelength | R1 (%) |
|---|---|
| 400nm | 49.9% |
| 420nm | 51.7% |
| 440nm | 53.8% |
| 460nm | 55.3% |
| 480nm | 56.9% |
| 500nm | 58.5% |
| 520nm | 60.1% |
| 540nm | 61.7% |
| 560nm | 63.3% |
| 580nm | 64.9% |
| 600nm | 66.5% |
| 620nm | 68.4% |
| 640nm | 70.3% |
| 660nm | 72.4% |
| 680nm | 74.5% |
| 700nm | 76.6% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 76.6%.
Colour in reflected light:
Bright white with a yellowish tint
Internal Reflections:
None
Pleochroism:
Non-pleochroic
Chemistry of Yixunite
Mindat Formula:
Pt3In
Elements listed:
Crystallography of Yixunite
Crystal System:
Isometric
Class (H-M):
m3m(4/m32/m) - Hexoctahedral
Cell Parameters:
a = 3.988(3) Å
Unit Cell V:
63.43 ų (Calculated from Unit Cell)
Z:
1
Comment:
Space Group: Pm3m
Crystal Structure
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2x2x2 | 3x3x3 | 4x4x4
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0011979 | Yixunite | Yu Z (1997) Yixunite - an ordered new native indium and platinum alloy Acta Geologica Sinica 71 332-335 | 1997 | Yixun River, 270 km north of Beijing, China | 0 | 293 | |
| 0011975 | Yixunite | Yu T H, Lin S J, Chao P, Fang C S, Huang C S (1974) A preliminary study of some new minerals of the platinum-group and another associated new one in platinum-bearing intrusions in a region of China Acta Geologica Sinica 48 202-218 | 1974 | China | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.30 Å | (100) |
| 1.203 Å | (80) |
| 1.99 Å | (60) |
| 1.41 Å | (40) |
| 1.151 Å | (40) |
| 0.997 Å | (20) |
| 1.33 Å | (10) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3a: Earth’s earliest Hadean crust | >4.50 |
| 7 : Ultramafic igneous rocks |
Type Occurrence of Yixunite
General Appearance of Type Material:
Intimately associated with damiaoite. They occur as globules (product of complexes in hydrothermal solution), 1-2 mm in diameter.
Place of Conservation of Type Material:
National Museum for Geology, Beijing, China, M10121.
Geological Setting of Type Material:
Cobalt- and copper-bearing platinum ore vein of a contact metasomatic deposit (a contact zone of pyroxenite with plagioclasite).
Associated Minerals at Type Locality:
Synonyms of Yixunite
Other Language Names for Yixunite
Related Minerals - Strunz-mindat Grouping
| 1.AG. | Sluzhenikinite | Pd15(Sb7-xSnx) |
| 1.AG. | Palladothallite | Pd3Tl |
| 1.AG. | Driekopite | PtBi |
| 1.AG. | Sidorovite | Fe3Pt |
| 1.AG. | Michitoshiite-(Cu) | Rh(Cu1-xGex) |
| 1.AG.05 | Hexaferrum | (Fe,Os,Ru,Ir) |
| 1.AG.05 | Garutiite | (Ni,Fe,Ir) |
| 1.AG.10 | Zvyagintsevite | Pd3Pb |
| 1.AG.10 | Rustenburgite | (Pt,Pd)3Sn |
| 1.AG.10 | Atokite | (Pd,Pt)3Sn |
| 1.AG.15 | Taimyrite | (Pd,Cu,Pt)3Sn |
| 1.AG.15 | Tatyanaite | (Pt,Pd,Cu)9Cu3Sn4 |
| 1.AG.20 | Paolovite | Pd2Sn |
| 1.AG.25 | Stannopalladinite | (Pd,Cu)3Sn |
| 1.AG.25 | Plumbopalladinite | Pd3Pb2 |
| 1.AG.30 | Cabriite | Pd2CuSn |
| 1.AG.35 | Isoferroplatinum | Pt3Fe |
| 1.AG.35 | Chengdeite | Ir3Fe |
| 1.AG.40 | Tetraferroplatinum | PtFe |
| 1.AG.40 | Tulameenite | Pt2CuFe |
| 1.AG.40 | Ferronickelplatinum | Pt2FeNi |
| 1.AG.45 | Skaergaardite | PdCu |
| 1.AG.45 | Hongshiite | PtCu |
| 1.AG.55 | Damiaoite | PtIn2 |
| 1.AG.60 | Niggliite | PtSn |
| 1.AG.65 | Bortnikovite | Pd4Cu3Zn |
| 1.AG.70 | Nielsenite | PdCu3 |
| 1.AG.75 | Norilskite | (Pd,Ag)2xPb (x = 0.08 - 0.11) |
Other Information
Magnetism:
Non-Magnetic
Notes:
Insoluble in HNO3, HCl or H3PO4.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Yixunite
mindat.org URL:
https://www.mindat.org/min-7378.html
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References for Yixunite
Localities for Yixunite
Showing 2 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
China | |
| Yu et al. (2009) |
| Yu Zuxiang (1997) |
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PGE occurrence, Damiao complex, Luanping County, Chengde, Hebei, China