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.

Name Pronunciation:

Damiaoite + Pronunciation

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

Diaphaneity:

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:

Bulk Density (Electron Density)=9.07 gm/cc
note: Specific Gravity of Damiaoite =10.9 gm/cc.

Fermion Index:

Fermion Index = 0.15
Boson Index = 0.85

Photoelectric:

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

Radioactivity:

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

Damiaoite Classification

Dana Class:

01.02.12.01 (01)Native Elements

(01.02)with platinum group metals and alloys

(01.02.12)Dana Group

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

Strunz Class:

01.AG.55 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.55 Damiaoite! PtIn2 F 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 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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

Damiaoite

PtIn2
Dana No: 01.02.12.01 Strunz No: 01.AG.55
Locality:

Notes: