Gaotaiite Mineral Data (original) (raw)

General Gaotaiite Information

Help on Chemical Formula: Chemical Formula:

Ir3Te8

Help on Composition: Composition:

Molecular Weight = 1,597.46 gm

Tellurium 63.90 % Te

Iridium 36.10 % Ir

______

100.00 %

Help on Empirical Formula: Empirical Formula:

Ir3Te8

Help on Environment: Environment:

A constituent of placer deposits and crushed ores of a chromium deposit.

Help on IMA Status: IMA Status:

Approved IMA 1995

Help on Locality: Locality:

Near the village of Gaotai, about 200 km NNE of Beijing, People's Republic of China. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named after its locality.

Help on Name Pronunciation: Name Pronunciation:

Gaotaiite + Pronunciation Say GAOTAIITE

Help on Synonym: Synonym:

IMA1993-017

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Gaotaiite Crystallography

Help on Cell Dimensions: Cell Dimensions:

a = 6.413, Z = 1; V = 263.74 Den(Calc)= 10.06

Help on Crystal System: Crystal System:

Isometric - DiploidalH-M Symbol (2/m 3) Space Group: P a3

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 1.93(1), 1.132(0.9), 1.235(0.8),

Physical Properties of Gaotaiite

Help on Cleavage: Cleavage:

None

Help on Color: Color:

Steel black.

Help on Density: Density:

9.97

Help on Diaphaneity: Diaphaneity:

Opaque

Help on Fracture: Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Help on Habit: Habit:

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

Help on Hardness: Hardness:

3 - Calcite

Help on Luster: Luster:

Metallic

Help on Streak: Streak:

black

Optical Properties of Gaotaiite

Help on RL Anisotrophism: RL Anisotrophism:

Weak with bluish or yellowish tint.

Help on RL Bireflectance: RL Bireflectance:

Not noticable.

Help on RL Color: RL Color:

Bright white with bluish tint.

Help on RL Pleochroism: RL Pleochroism:

Not noticable.

Help on Reflectivity Reflectivity

Standardized Intensity (100%) Reflection Spectra of Gaotaiite in Air

λ R ∑ R(λ)
470 nm 46.60
546 nm 46.30
589 nm 46.30
650 nm 45.60

Calculated Relative Intensity Colors of Gaotaiite in Air

RelativeIntensity 0% 30% 60% 90% 100% 120% 150% 180% 200%
R

Calculated Properties of Gaotaiite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=8.15 gm/cc
note: Specific Gravity of Gaotaiite =10.1 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.05
Boson Index = 0.95

Help on Photoelectric: Photoelectric:

PEGaotaiite = 794.05 barns/electron
U=PEGaotaiite x rElectron Density=6,470.72 barns/cc.

Help on Radioactivity: Radioactivity:

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

Gaotaiite Classification

Help on Dana Class: Dana Class:

02.12.01.18 (02)Sulfides - Including Selenides and Tellurides

(02.12)where Am Bn Xp, with (m+n):p=1:2

(02.12.01)Pyrite Group (Isometric: Pa3)

02.12.01.01 Pyrite FeS2 P a3 2/m 3

02.12.01.02 Vaesite NiS2 P a3 2/m 3

02.12.01.03 Cattierite CoS2 P a3 2/m 3

02.12.01.04 Penroseite (Ni,Co,Cu)Se2 P a3 2/m 3

02.12.01.05 Trogtalite CoSe2 P a3 2/m 3

02.12.01.06 Villamaninite (Cu,Ni,Co,Fe)S2 P a3 2/m 3

02.12.01.07 Fukuchilite Cu3FeS8 P a3 2/m 3

02.12.01.08 Krutaite CuSe2 P a3 2/m 3

02.12.01.09 Hauerite MnS2 P a3 2/m 3

02.12.01.10 Laurite RuS2 P a3 2/m 3

02.12.01.11 Aurostibite AuSb2 P a3 2/m 3

02.12.01.12 Krutovite NiAs2 P a3 2/m 3

02.12.01.13 Sperrylite PtAs2 P a3 2/m 3

02.12.01.14 Geversite Pt(Sb,Bi)2 P a3 2/m 3

02.12.01.15 Insizwaite Pt(Bi,Sb)2 P a3 2/m 3

02.12.01.16 Erlichmanite OsS2 P a3 2/m 3

02.12.01.17 Dzharkenite FeSe2 P a3 2/m 3

02.12.01.18 Gaotaiite Ir3Te8 P a3 2/m 3

02.12.01.19 Mayingite IrBiTe P a3 2/m 3

Help on Strunz Class: Strunz Class:

02.EB.05a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf

02.E - Metal Sulfides, M:S � 1:2

02.EB -M:S = 1:2, with Fe, Co, Ni, PGE, etc.

02.EB.05a Aurostibite AuSb2 P a3 2/m 3

02.EB.05a Cattierite CoS2 P a3 2/m 3

02.EB.05a Hauerite MnS2 P a3 2/m 3

02.EB.05a Fukuchilite Cu3FeS8 P a3 2/m 3

02.EB.05a Dzharkenite FeSe2 P a3 2/m 3

02.EB.05a Erlichmanite OsS2 P a3 2/m 3

02.EB.05a Geversite Pt(Sb,Bi)2 P a3 2/m 3

02.EB.05a Gaotaiite Ir3Te8 P a3 2/m 3

02.EB.05a Insizwaite Pt(Bi,Sb)2 P a3 2/m 3

02.EB.05a Laurite RuS2 P a3 2/m 3

02.EB.05a Krutaite CuSe2 P a3 2/m 3

02.EB.05a Pyrite FeS2 P a3 2/m 3

02.EB.05a Penroseite (Ni,Co,Cu)Se2 P a3 2/m 3

02.EB.05a Sperrylite PtAs2 P a3 2/m 3

02.EB.05a Vaesite NiS2 P a3 2/m 3

02.EB.05a Villamaninite (Cu,Ni,Co,Fe)S2 P a3 2/m 3

02.EB.05a Trogtalite CoSe2 P a3 2/m 3

Other Gaotaiite Information

Help on References: References:

NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.81,1996) OPTIC PROP.(MinRec, v 27, p 117)

Help on See Also: See Also:

Links to other databases for Gaotaiite :
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 Gaotaiite Specimen Label here :

Gaotaiite

Ir3Te8
Dana No: 02.12.01.18 Strunz No: 02.EB.05a
Locality:

Notes: