Atokite
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Atokite
Formula:
(Pd,Pt)3Sn
Colour:
Light cream
Lustre:
Metallic
Hardness:
4½
Specific Gravity:
14.19 (Calculated)
Crystal System:
Isometric
Name:
For the type locality, the Atok mine.
Unique Identifiers
Mindat ID:
413
Long-form identifier:
mindat:1:1:413:6
IMA Classification of Atokite
Approved
IMA Formula:
Pd3Sn
Classification of Atokite
1.AG.10
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.:
1.2.7.2
1.2.5.3
1 : NATIVE ELEMENTS AND ALLOYS
2 : Platinum Group Metals and Alloys
1 : NATIVE ELEMENTS AND ALLOYS
2 : Platinum Group Metals and Alloys
1.72
1 : Elements and Alloys (including the arsenides, antimonides and bismuthides of Cu, Ag and Au)
1 : Elements and Alloys (including the arsenides, antimonides and bismuthides of Cu, Ag and Au)
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Symbol | Source | Reference |
---|---|---|
Ato | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
At | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Physical Properties of Atokite
Metallic
Transparency:
Opaque
Colour:
Light cream
Comment:
In reflected light
Hardness:
4½ on Mohs scale
Hardness:
VHN25=357 kg/mm2 - Vickers
Density:
14.19 g/cm3 (Calculated)
Optical Data of Atokite
Type:
Isotropic
Anisotropism:
Slight, due to strain
Reflectivity:
Wavelength | R1 (%) | R2 (%) |
---|---|---|
480nm | 57.4% | 60.8% |
546nm | 59.2% | 65.1% |
589nm | 60.4% | 63.5% |
656nm | 62.2% | 65.8% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 65.8%.
R1 shown in black, R2 shown in red
Colour in reflected light:
light cream
Pleochroism:
Weak
Chemistry of Atokite
Mindat Formula:
(Pd,Pt)3Sn
Elements listed:
Crystallography of Atokite
Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fm3m
Setting:
Fm3m
Cell Parameters:
a = 3.991 Å
Unit Cell V:
63.57 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Small grains less than 100 microns.
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
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) |
---|---|---|---|---|---|---|---|
0005109 | Atokite | Mihalik P, Hiemstra S A, de Villiers J P R (1975) Rustenburgite and atokite, two new platinum-group minerals from the Merensky Reef, Bushveld igneous complex The Canadian Mineralogist 13 146-150 | ![]() | 1975 | the Rustenburg and Atok Platinum Mines in the Bushveld Igneous complex, South Africa | 0 | 293 |
0005183 | Atokite | Shelton K L, Merewether P A, Skinner B J (1981) Phases and phase relations in the system Pd-Pt-Sn The Canadian Mineralogist 19 599-605 | ![]() | 1981 | 0 | 293 | |
0014147 | Atokite | Ellner M (1981) Zusammenhang zwischen strukturellen und thermodynamischen eigenschaften bei phasen der kupferfamilie in T10-B4-systemen Journal of the Less-Common Metals 78 21-32 | 1981 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
2.295 Å | (100) |
1.992 Å | (80) |
1.408 Å | (90) |
1.202 Å | (100) |
0.9153 Å | (90) |
0.8922 Å | (80) |
0.8145 Å | (90) |
Comments:
Merensky Reef, South Africa.
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 3b: Earth’s earliest hydrosphere | >4.45 |
12 : Hadean hydrothermal subsurface sulfide deposits (see also #33) | |
Near-surface Processes | |
26 : Hadean detrital minerals | |
High-𝑇 alteration and/or metamorphism | |
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) | |
Stage 4b: Highly evolved igneous rocks | >3.0 |
37 : Layered igneous intrusions and related PGE minerals |
Type Occurrence of Atokite
Geological Setting of Type Material:
As very sparse grains in concentrates of ore.
Synonyms of Atokite
Other Language Names for Atokite
Varieties of Atokite
Lead-, Arsenic- and Antimony-bearing Atokite | Associated with norilskite. |
Common Associates
Associated Minerals Based on Photo Data:
10 photos of Atokite associated with Taimyrite | (Pd,Cu,Pt)3Sn |
8 photos of Atokite associated with Chalcopyrite | CuFeS2 |
6 photos of Atokite associated with Palarstanide | Pd5(Sn,As)2 |
6 photos of Atokite associated with Native Silver | Ag |
5 photos of Atokite associated with Tetraferroplatinum | PtFe |
5 photos of Atokite associated with Polarite | Pd(Bi,Pb) |
4 photos of Atokite associated with Rustenburgite | (Pt,Pd)3Sn |
4 photos of Atokite associated with Pentlandite | (NixFey)Σ9S8 |
4 photos of Atokite associated with Stannopalladinite | (Pd,Cu)3Sn |
4 photos of Atokite associated with Galena | PbS |
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.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.50 | Yixunite | Pt3In |
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
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 Atokite
mindat.org URL:
https://www.mindat.org/min-413.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Atokite
Reference List:
Localities for Atokite
Locality List




All localities listed without proper references should be considered as questionable.
Quick NavTopAbout AtokiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesVarietiesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Talnakh Cu-Ni Deposit, Norilsk-Talnakh Mining Region, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia