Mineralogy Database

Laurite Mineral Data

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General Laurite Information

Help on Chemical  Formula: Chemical Formula: RuS2
Help on Composition: Composition: Molecular Weight = 165.20 gm
   Ruthenium  61.18 %  Ru
   Sulfur     38.82 %  S
             ______ 
             100.00 % 
Help on Empirical Formula: Empirical Formula: RuS2
Help on Environment: Environment: In ultramafic complexes and their derived placer deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1866
Help on Locality: Locality: Borneo, Malaysia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Laura R. Joy, wife of Charles A. Joy, American Chemist, Columbia University, New Yourk City, USA.
Help on Name Pronunciation: Name Pronunciation: Laurite Say LAURITE
Help on Synonym: Synonym: ICSD 24186
  PDF 19-1107
 

Laurite Image

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  Hollingworthite   Laurite

Comments: Gray grain of hollingworthite (in the center of the picture) with very slightly darker gray laurite (at the right margin). Polished section (from microprobe analysis).
Location: Konder Mine, Konder alkaline-ultrabasic massif, Aldan shield, Saha (Sakha) Republic (Yakutia), Eastern-Siberian Region, Russia. Scale: Picture size 0.1 mm.
© Thomas Witzke / Abraxas-Verlag

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  Kashinite   Laurite

Comments: Gray kashinite with darker gray laurite. Polished section (from microprobe analysis) in reflected light.
Location: Nizhne-Tagil'skoye (Mednorudyanskoye) Cu Deposit, Nizhnii Tagil, Sverdlovskaya Oblast', Urals Region, Russia. Scale: Picture size 0.2 mm.
© Thomas Witzke / Abraxas-Verlag

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  Laurite   Hollingworthite

Comments: Gray laurite with two smaller grains of hollingworthite (left and right from the laurite, very slightly lighter gray). Polished section (from microprobe analysis) in reflected light.
Location: Konder Mine, Konder alkaline-ultrabasic massif, Aldan shield, Saha (Sakha) Republic (Yakutia), Eastern-Siberian Region, Russia. Scale: Picture size 0.15 mm.
© Thomas Witzke / Abraxas-Verlag

Laurite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 5.6, Z = 4; V = 175.62 Den(Calc)= 6.25
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): 1.695(1), 3.25(0.8), 2.81(0.7),
 

Physical Properties of Laurite

Help on Cleavage: Cleavage: {111} Perfect
Help on Color: Color: Black.
Help on Density: Density: 6.99
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Crystalline - Fine - Occurs as well-formed fine sized crystals.
Help on Habit: Habit: Crystalline - Poor - Occurs primarily as crudely formed crystals.
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Hardness: Hardness: 7.5 - Garnet
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Metallic
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: dark gray
 

Optical Properties of Laurite

Help on RL Color: RL Color: White to gray, bluish.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Laurite in Air
λ R  ∑ R(λ) 
 400 nm   46.00   
 420 nm   45.00 
 440 nm   44.00 
 460 nm   43.10 
 480 nm   42.20 
 500 nm   41.50 
 520 nm   40.80 
 540 nm   40.20 
 560 nm   39.60 
 580 nm   39.00 
 600 nm   38.40 
 620 nm   38.00 
 640 nm   37.50 
 660 nm   37.00 
 680 nm   36.60 
 700 nm   36.20 
Calculated Relative Intensity Colors of Laurite in Air
Relative
Intensity
   0%   30%   60%   90% 100% 120% 150% 180% 210% 230%
R                    
 

Calculated Properties of Laurite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.75 gm/cc
note: Specific Gravity of Laurite =6.25 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.18
Boson Index = 0.82
Help on Photoelectric: Photoelectric: PELaurite = 121.68 barns/electron
U=PELaurite x rElectron Density= 699.71 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Laurite is Not Radioactive
 

Laurite Classification

Help on  Dana Class: Dana Class: 02.12.01.10 (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 Laurite Information

Help on References: References: NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Laurite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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

Laurite

RuS2
Dana No: 02.12.01.10 Strunz No: 02.EB.05a
Locality:

 

Notes:

 

 
   
 


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