Taimyrite Mineral Data

Taimyrite Mineral Data +

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General Taimyrite Information

Chemical Formula:

(Pd,Cu,Pt)3Sn

Composition:

Molecular Weight = 425.98 gm

Copper 13.43 % Cu

Tin 27.87 % Sn

Palladium 44.97 % Pd

Platinum 13.74 % Pt

______

100.00 %

Empirical Formula:

Pd_1.8Cu_0.9Pt_0.3Sn

Environment:

As grains and veinlets near the contact between sulfide and rock-forming minerals in gabbro-dolerites

IMA Status:

Approved IMA 1982

Locality:

Talnakh, Tiamyr Peninsula, Norilsk, Russia. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Taimyrite Image

Images:

Taimyrite Atokite

Comments: Photomicrograph (oil immersion) of atokite and taimyrite intergrowth inside tetraauricupride reaction rim on Pt-Fe alloy. Outlined section shows atokite relics within taimyrite. (CanMin, v 42, p 610).
Location: Kondyor PGE placer, Khabarovskiy Kray, eastern Siberia, Russia,. Scale: See Image.
© Canadian Mineralogist

Taimyrite Crystallography

Axial Ratios:

a:b:c =1.1709:1:2.8273

Cell Dimensions:

a = 5.616, b = 4.796, c = 13.56, Z = 8; V = 365.23 Den(Calc)= 15.49

Crystal System:

OrthorhombicSpace Group: Unk

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

By Intensity(I/I_o): 2.15(1), 2.29(0.55), 2.36(0.4),

Physical Properties of Taimyrite

Color:

Bronze gray.

Density:

15.6

Diaphaniety:

Opaque

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Habit:

Twinning Common - Crystals are usually twinned.

Hardness:

5 - Apatite

Luster:

Metallic

Optical Properties of Taimyrite

RL Anisotrophism:

Dark gray with a blue tint to yellowish gray.

RL Color:

Light gray with a rose tint.

RL Pleochroism:

Distinct, from light gray with a rose tint to a creamy tint.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Taimyrite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	33.00	37.10
430 nm	37.80	41.20
460 nm	39.60	42.30
490 nm	42.30	45.20
520 nm	44.00	47.80
550 nm	45.50	49.60
580 nm	47.40	51.60
610 nm	49.70	54.00
640 nm	51.40	56.50
670 nm	53.00	59.20
700 nm	54.00	61.90

**Calculated Relative Intensity Colors of Taimyrite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%	230%
R₁
R₂

Calculated Properties of Taimyrite

Electron Density:

r_electron=13.3 gm/cc
note: r_Taimyrite=15.5 gm/cc.

Fermion Index

Fermion Index = 0.19316
Boson Index = 0.80684

Photoelectric:

PE_Taimyrite= 414.06 barns/electron
U=PE_Taimyrite x r_electron=5,489.61 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Taimyrite is Not Radioactive

Taimyrite Classification

Dana Class:

1.2.7.1 (1)Native Elements

(1.2)with platinum group metals and alloys

(1.2.7)Dana Group

1.2.7.1 Taimyrite (Pd,Cu,Pt)3Sn Unk Ortho

1.2.7.2 Tatyanaite! (Pt,Pd,Cu)9Cu3Sn4 P mmm,Pmm2,P 222 Ortho

Strunz Class:

I/A.17-30 I - Elements

I/A - Metallic and intermetallic compounds, Platinum-Iron-compounds with Tin/Lead and related compunds

I/A.17 - Paolovite - Thaimyrite series

I/A.17-10 Paolovite Pd2Sn Pbnm 2/m 2/m 2/m

I/A.17-20 Cabriite Pd2SnCu P mmm 2/m 2/m 2/m

I/A.17-30 Taimyrite (Pd,Cu,Pt)3Sn Unk Ortho

I/A.17-40 Tatyanaite! (Pt,Pd,Cu)9Cu3Sn4 P mmm,Pmm2,P 222 Ortho

Other Taimyrite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Taimyrite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Taimyrite

(Pd,Cu,Pt)3Sn
Dana No: 1.2.7.1 Strunz No: I/A.17-30
Locality:

Notes: