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Mayingite Mineral Data
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General Mayingite Information
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 Chemical Formula: |
IrBiTe |
| Composition: |
Molecular Weight = 528.80 gm |
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Bismuth 39.52 % Bi |
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Tellurium 24.13 % Te |
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Iridium 36.35 % Ir |
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______ |
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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
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| Cell Dimensions: |
a = 6.502, Z = 4; V = 274.88 Den(Calc)= 12.78 |
| Crystal System: |
Isometric - Diploidal H-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), |
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Physical Properties of Mayingite
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| 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 |
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Optical Properties of Mayingite
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| 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 |
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∑ R(λ) |
| 470 nm |
49.50 |
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| 546 nm |
50.80 |
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| 589 nm |
51.60 |
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| 650 nm |
52.20 |
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Calculated Relative Intensity Colors of Mayingite in Air
Relative
Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
160% |
180% |
| R |
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Calculated Properties of Mayingite
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| Electron Density: |
Bulk Density (Electron Density)=10.2 gm/cc
note: Specific Gravity of Mayingite =12.8 gm/cc.
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| 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.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Mayingite is Not Radioactive |
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Mayingite Classification
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| Dana Class: |
02.12.01.19 (02)Sulfides - Including Selenides and Tellurides |
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(02.12)where Am Bn Xp, with (m+n):p=1:2 |
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(02.12.01)Pyrite Group (Isometric: Pa3) |
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02.12.01.01 Pyrite FeS2 P a3 2/m 3 |
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02.12.01.02 Vaesite NiS2 P a3 2/m 3 |
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02.12.01.03 Cattierite CoS2 P a3 2/m 3 |
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02.12.01.04 Penroseite (Ni,Co,Cu)Se2 P a3 2/m 3 |
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02.12.01.05 Trogtalite CoSe2 P a3 2/m 3 |
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02.12.01.06 Villamaninite (Cu,Ni,Co,Fe)S2 P a3 2/m 3 |
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02.12.01.07 Fukuchilite Cu3FeS8 P a3 2/m 3 |
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02.12.01.08 Krutaite CuSe2 P a3 2/m 3 |
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02.12.01.09 Hauerite MnS2 P a3 2/m 3 |
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02.12.01.10 Laurite RuS2 P a3 2/m 3 |
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02.12.01.11 Aurostibite AuSb2 P a3 2/m 3 |
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02.12.01.12 Krutovite NiAs2 P a3 2/m 3 |
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02.12.01.13 Sperrylite PtAs2 P a3 2/m 3 |
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02.12.01.14 Geversite Pt(Sb,Bi)2 P a3 2/m 3 |
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02.12.01.15 Insizwaite Pt(Bi,Sb)2 P a3 2/m 3 |
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02.12.01.16 Erlichmanite OsS2 P a3 2/m 3 |
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02.12.01.17 Dzharkenite FeSe2 P a3 2/m 3 |
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02.12.01.18 Gaotaiite Ir3Te8 P a3 2/m 3 |
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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 |
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02.E - Metal Sulfides, M:S � 1:2 |
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02.EB -M:S = 1:2, with Fe, Co, Ni, PGE, etc. |
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02.EB.25 Cobaltite CoAsS P ca21 mm2 |
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02.EB.25 Changchengite! IrBiS P 213 2 3 |
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02.EB.25 Hollingworthite (Rh,Pt,Pd)AsS P a3 2/m 3 |
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02.EB.25 Gersdorffite NiAsS P 213 2 3 |
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02.EB.25 Irarsite (Ir,Ru,Rh,Pt)AsS P a3 2/m 3 |
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02.EB.25 Jolliffeite (Ni,Co)AsSe P a3 2/m 3 |
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02.EB.25 Krutovite NiAs2 P a3 2/m 3 |
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02.EB.25 Michenerite (Pd,Pt)BiTe P 213 2 3 |
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02.EB.25 Maslovite PtBiTe P 213 2 3 |
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02.EB.25 Mayingite IrBiTe P a3 2/m 3 |
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02.EB.25 Padmaite PdBiSe P 213 2 3 |
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02.EB.25 Platarsite (Pt,Rh,Ru)AsS P a3 2/m 3 |
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02.EB.25 Ullmannite NiSbS P 213 2 3 |
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02.EB.25 Tolovkite IrSbS P 213 2 3 |
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02.EB.25 Testibiopalladite PdTe(Sb,Te) P 213 2 3 |
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02.EB.25 Willyamite (Co,Ni)SbS P 213 2 3 |
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02.EB.25 Kalungaite! PdAsSe Pa3 2/m 3 |
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02.EB.25 Milotaite! PdSbSe P 21/3 2 3 |
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Other Mayingite Information
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| 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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Mayingite
IrBiTe
Dana No: 02.12.01.19 Strunz No: 02.EB.25
Locality:
Notes:
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