Mayingite Mineral Data (original) (raw)
General Mayingite Information
Chemical Formula:
IrBiTe
Composition:
Molecular Weight = 528.80 gm
Bismuth 39.52 % Bi
Tellurium 24.13 % Te
Iridium 36.35 % Ir
______
100.00 %
Empirical Formula:
IrBiTe
Environment:
A constituent of placer deposits and crushed ores or a chromite deposit.
IMA Status:
Approved IMA 1995
Locality:
Near the village of Maying, about 230 km NNE of Beijing, People's Republic of China. Link to MinDat.org Location Data.
Name Origin:
Named after its locality.
Name Pronunciation:
Mayingite + Pronunciation 
Synonym:
IMA1993-016
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Mayingite Crystallography
Cell Dimensions:
a = 6.502, Z = 4; V = 274.88 Den(Calc)= 12.78
Crystal System:
Isometric - DiploidalH-M Symbol (2/m 3) Space Group: P a3
X Ray Diffraction:
By Intensity(I/Io): 1.955(1), 1.25(0.8), 1.735(0.8),
Physical Properties of Mayingite
Cleavage:
None
Color:
Steel black.
Density:
12.72
Diaphaneity:
Opaque
Fracture:
Brittle - Generally displayed by glasses and most non-metallic minerals.
Habit:
Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Hardness:
4 - Fluorite
Luster:
Metallic
Streak:
black
Optical Properties of Mayingite
RL Anisotrophism:
Some grains show a bluish or yellowish tint.
RL Bireflectance:
None.
RL Color:
Bright white with yellowish tint.
RL Pleochroism:
None.
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
| RelativeIntensity | 0% | 20% | 40% | 60% | 80% | 100% | 120% | 140% | 160% | 180% |
|---|---|---|---|---|---|---|---|---|---|---|
| R |
Calculated Properties of Mayingite
Electron Density:
Bulk Density (Electron Density)=10.2 gm/cc
note: Specific Gravity of Mayingite =12.8 gm/cc.
Fermion Index:
Fermion Index = 0.01
Boson Index = 0.99
Photoelectric:
PEMayingite =1,447.11 barns/electron
U=PEMayingite x rElectron Density=14828.85 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Mayingite is Not Radioactive
Mayingite Classification
Dana Class:
02.12.01.19 (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
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
References:
NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.81,1996) OPTIC PROP.(MinRec, v 27, p 117)
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
13 - WWW-MINCRYST
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Print or Cut-and-Paste your Mayingite Specimen Label here :
Mayingite
IrBiTe
Dana No: 02.12.01.19 Strunz No: 02.EB.25
Locality:
Notes: