Rustenburgite Mineral Data

General Rustenburgite Information

Chemical Formula:

(Pt,Pd)3Sn

Composition:

Molecular Weight = 637.46 gm

Tin 18.62 % Sn

Palladium 12.52 % Pd

Platinum 68.86 % Pt

______

100.00 %

Empirical Formula:

Pt_2.25Pd_0.75Sn

Environment:

As very sparse grains in concentrates.

IMA Status:

Approved IMA 1975

Locality:

Atok and Rustenburg mines, Merensky Reef, Pretoria, Transvaal, South Africa. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Rustenburgite + Pronunciation

Synonym:

ICSD 40336

PDF 29-968

Rustenburgite Image

Images:

Click Here for Larger Rustenburgite Image

Rustenburgite Tatyanaite

Comments: Back-scattered electron images showing inclusions of rustenburgite intergrown with taimyrite-tatyanaite aggregates. (AmMin, v 42, p 608).
Location: Kondyor PGE placer, Khabarovskiy Kray, eastern Siberia, Russia. Scale: See Image.
© American Mineralogist

Rustenburgite Crystallography

Cell Dimensions:

a = 3.991, Z = 1; V = 63.57 Den(Calc)= 16.65

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F m3m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 1.202(1), 2.295(1), 1.408(0.9),

Crystal Structure:

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Mihalik P , Hiemstra S A , de Villiers J P R , The Canadian Mineralogist , 13 (1975) p.146-150, Rustenburgite and atokite, two new platinum-group minerals from the, Merensky Reef, Bushveld igneous complex, Locality: the Rustenburg and Atok Platinum Mines in the Bushveld Igneous complex, South Africa

Physical Properties of Rustenburgite

Color:

Tin white.

Diaphaneity:

Opaque

Habit:

Granular - Generally occurs as anhedral to subhedral crystals in matrix.

Hardness:

5 - Apatite

Luster:

Metallic

Optical Properties of Rustenburgite

RL Anisotrophism:

Slight due to strain.

RL Color:

Light cream.

RL Pleochroism:

None under the microscope but slight through a photometer.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Rustenburgite in Air**
λ	R	∑ R(λ)
480 nm	56.20
546 nm	59.80
589 nm	60.40
656 nm	61.65

**Calculated Relative Intensity Colors of Rustenburgite in Air**
Relative Intensity	0%	20%	40%	60%	80%	100%	120%	140%	160%
R

Calculated Properties of Rustenburgite

Electron Density:

Bulk Density (Electron Density)=13.6 gm/cc
note: Specific Gravity of Rustenburgite =16.7 gm/cc.

Fermion Index:

Fermion Index = 0.29
Boson Index = 0.71

Photoelectric:

PE_{Rustenburgite}=1,188.37 barns/electron
U=PE_{Rustenburgite} x rElectron Density=16140.57 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Rustenburgite is Not Radioactive

Rustenburgite Classification

Dana Class:

01.02.05.02 (01)Native Elements

(01.02)with platinum group metals and alloys

(01.02.05)Isoferroplatinum group (Space Group Pm3m)

01.02.05.01 Isoferroplatinum (Pt,Pd)3(Fe,Cu) P m3m 4/m 3 2/m

01.02.05.02 Rustenburgite (Pt,Pd)3Sn F m3m 4/m 3 2/m

01.02.05.03 Atokite (Pd,Pt)3Sn F m3m 4/m 3 2/m

01.02.05.04 Zvyagintsevite Pd3Pb P m3m 4/m 3 2/m

01.02.05.05 Chengdeite Ir3Fe P m3m 4/m 3 2/m

01.02.05.06 Yixunite! Pt3In P m3m 4/m 3 2/m

Strunz Class:

01.AG.10 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)

01.A - Metals and Intermetallic Alloys

01.AG -PGE-metal alloys

01.AG.10 Atokite (Pd,Pt)3Sn F m3m 4/m 3 2/m

01.AG.10 Rustenburgite (Pt,Pd)3Sn F m3m 4/m 3 2/m

01.AG.10 Zvyagintsevite Pd3Pb P m3m 4/m 3 2/m

Other Rustenburgite Information

References:

NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Rustenburgite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Print or Cut-and-Paste your Rustenburgite Specimen Label here :

Rustenburgite

(Pt,Pd)3Sn
Dana No: 01.02.05.02 Strunz No: 01.AG.10
Locality:

Notes: