Mineralogy Database

Mayingite Mineral Data

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General Mayingite Information

Help on Chemical  Formula: Chemical Formula: IrBiTe
Help on Composition: Composition: Molecular Weight = 528.80 gm
   Bismuth    39.52 %  Bi
   Tellurium  24.13 %  Te
   Iridium    36.35 %  Ir
             100.00 % 
Help on Empirical Formula: Empirical Formula: IrBiTe
Help on Environment: Environment: A constituent of placer deposits and crushed ores or a chromite deposit.
Help on IMA Status: IMA Status: Approved IMA 1995
Help on Locality: Locality: Near the village of Maying, about 230 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: Mayingite + Pronunciation Say MAYINGITE
Help on Synonym: Synonym: IMA1993-016

Mayingite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 6.502, Z = 4; V = 274.88 Den(Calc)= 12.78
Help on Crystal System: Crystal System: Isometric - Diploidal H-M Symbol (2/m 3) Space Group: P a3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.955(1), 1.25(0.8), 1.735(0.8),

Physical Properties of Mayingite

Help on Cleavage: Cleavage: None
Help on Color: Color: Steel black.
Help on Density: Density: 12.72
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: 4 - Fluorite
Help on Luster: Luster: Metallic
Help on Streak: Streak: black

Optical Properties of Mayingite

Help on RL Anisotrophism: RL Anisotrophism: Some grains show a bluish or yellowish tint.
Help on RL Bireflectance: RL Bireflectance: None.
Help on RL Color: RL Color: Bright white with yellowish tint.
Help on RL Pleochroism: RL Pleochroism: None.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Mayingite in Air
λ R  ∑ R(λ) 
 470 nm   49.50   
 546 nm   50.80 
 589 nm   51.60 
 650 nm   52.20 
Calculated Relative Intensity Colors of Mayingite in Air
   0%   20%   40%   60%   80% 100% 120% 140% 160% 180%

Calculated Properties of Mayingite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=10.2 gm/cc
note: Specific Gravity of Mayingite =12.8 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEMayingite =1,447.11 barns/electron
U=PEMayingite x rElectron Density=14828.85 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Mayingite is Not Radioactive

Mayingite Classification

Help on  Dana Class: Dana Class: (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) Pyrite FeS2 P a3 2/m 3 Vaesite NiS2 P a3 2/m 3 Cattierite CoS2 P a3 2/m 3 Penroseite (Ni,Co,Cu)Se2 P a3 2/m 3 Trogtalite CoSe2 P a3 2/m 3 Villamaninite (Cu,Ni,Co,Fe)S2 P a3 2/m 3 Fukuchilite Cu3FeS8 P a3 2/m 3 Krutaite CuSe2 P a3 2/m 3 Hauerite MnS2 P a3 2/m 3 Laurite RuS2 P a3 2/m 3 Aurostibite AuSb2 P a3 2/m 3 Krutovite NiAs2 P a3 2/m 3 Sperrylite PtAs2 P a3 2/m 3 Geversite Pt(Sb,Bi)2 P a3 2/m 3 Insizwaite Pt(Bi,Sb)2 P a3 2/m 3 Erlichmanite OsS2 P a3 2/m 3 Dzharkenite FeSe2 P a3 2/m 3 Gaotaiite Ir3Te8 P a3 2/m 3 Mayingite IrBiTe P a3 2/m 3
Help on  Strunz Class: Strunz Class: 02.EB.25 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.25 Cobaltite CoAsS P ca21 mm2
02.EB.25 Changchengite! IrBiS P 213 2 3
02.EB.25 Hollingworthite (Rh,Pt,Pd)AsS P a3 2/m 3
02.EB.25 Gersdorffite NiAsS P 213 2 3
02.EB.25 Irarsite (Ir,Ru,Rh,Pt)AsS P a3 2/m 3
02.EB.25 Jolliffeite (Ni,Co)AsSe P a3 2/m 3
02.EB.25 Krutovite NiAs2 P a3 2/m 3
02.EB.25 Michenerite (Pd,Pt)BiTe P 213 2 3
02.EB.25 Maslovite PtBiTe P 213 2 3
02.EB.25 Mayingite IrBiTe P a3 2/m 3
02.EB.25 Padmaite PdBiSe P 213 2 3
02.EB.25 Platarsite (Pt,Rh,Ru)AsS P a3 2/m 3
02.EB.25 Ullmannite NiSbS P 213 2 3
02.EB.25 Tolovkite IrSbS P 213 2 3
02.EB.25 Testibiopalladite PdTe(Sb,Te) P 213 2 3
02.EB.25 Willyamite (Co,Ni)SbS P 213 2 3
02.EB.25 Kalungaite! PdAsSe Pa3 2/m 3
02.EB.25 Milotaite! PdSbSe P 21/3 2 3

Other Mayingite 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 Mayingite :
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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Dana No: Strunz No: 02.EB.25





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