Damiaoite Mineral Data

Damiaoite Mineral Data +

General Damiaoite Information

Chemical Formula:

PtIn2

Composition:

Molecular Weight = 424.72 gm

Indium 54.07 % In

Platinum 45.93 % Pt

______

100.00 %

Empirical Formula:

PtIn₂

Environment:

In a cobalt-copper-platinum bearing vein in garnet-amphibole pyroxenite.

IMA Status:

Approved IMA 1997 (Dana # Added)

Locality:

Near the village of Damiao and the Yixun River, about 370 km N of Beijing, People's Republic of China. Link to MinDat.org Location Data.

Name Origin:

For its locality.

Synonym:

ICSD 56259

IMA1995-041

PDF 50-1616

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Damiaoite Crystallography

Cell Dimensions:

a = 6.364, Z = 4; V = 257.75 Den(Calc)= 10.94

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): 2.25(1), 1.299(0.8), 1.92(0.6),

Crystal Structure:

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Wyckoff R W G , Crystal Structures , 1 (1963) p.239-444, Second edition. Interscience Publishers, New York, New York, Fluorite structure

View Additional jPOWD Structure files for Damiaoite
[1]

Physical Properties of Damiaoite

Cleavage:

None

Color:

Bright white.

Density:

10.95

Diaphaniety:

Opaque

Habit:

Globular - Spherical, or nearly so, rounded forms (e.g. wavellite).

Hardness:

5 - Apatite

Luster:

Metallic

Streak:

black

Optical Properties of Damiaoite

RL Color:

Bright white with a yellowish tint.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Damiaoite in Air**
λ	R	∑ R(λ)
470 nm	49.30
550 nm	60.60
590 nm	68.50
650 nm	80.10

**Calculated Relative Intensity Colors of Damiaoite in Air**
Relative Intensity	0%	20%	40%	60%	80%	100%	120%	140%	160%	180%
R

Calculated Properties of Damiaoite

Electron Density:

r_electron=9.07 gm/cc
note: r_Damiaoite=10.9 gm/cc.

Fermion Index

Fermion Index = 0.15524
Boson Index = 0.84476

Photoelectric:

PE_Damiaoite= 887.08 barns/electron
U=PE_Damiaoite x r_electron=8,043.05 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Damiaoite is Not Radioactive

Damiaoite Classification

Dana Class:

1.2.12.1 (1)Native Elements

(1.2)with platinum group metals and alloys

(1.2.12)Dana Group

1.2.12.1 Damiaoite ! PtIn2 F m3m 4/m 3 2/m

Strunz Class:

I/A.14-85 I - Elements

I/A - Metallic and intermetallic compounds, Carbides, Nitrides, Phosphides and Silicides

I/A.14 - Platinum series

I/A.14-10 Rhodium (Rh,Pt) F m3m 4/m 3 2/m

I/A.14-20 Palladium Pd,Pt F m3m 4/m 3 2/m

I/A.14-30 Iridium (Ir,Os,Ru,Pt) F m3m 4/m 3 2/m

I/A.14-70 Platinum Pt F m3m 4/m 3 2/m

I/A.14-80 Yixunite! Pt3In P m3m 4/m 3 2/m

I/A.14-85 Damiaoite PtIn2 F m3m 4/m 3 2/m

I/A.14-90 Hongshiite* PtCu R 3m 3 2/m

I/A.14-100 Skaergaardite! CuPd P m3m 4/m 3 2/m

Other Damiaoite Information

References:

NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.83,p653,1998) OPTIC PROP.(MinRec, v 29, p 468)

See Also:

Links to other databases for Damiaoite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas

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

Damiaoite

PtIn2
Dana No: 1.2.12.1 Strunz No: I/A.14-85
Locality:

Notes: