Mineralogy Database

Roshchinite Mineral Data

Search Webmineral :
  
Advertisment

General Roshchinite Information

Help on Chemical  Formula: Chemical Formula: Ag19Pb10Sb51S96 or Pb(Ag,Cu)2(Sb,As)5S10
Help on Composition: Composition: Molecular Weight = 12887.63 gm
   Copper     0.99 %  Cu
   Silver    15.90 %  Ag
   Antimony  43.46 %  Sb
   Arsenic    2.91 %  As
   Lead      12.86 %  Pb
   Sulfur    23.89 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Ag19Pb8Cu2Sb46As5S96
Help on IMA Status: IMA Status: Approved IMA 1990
Help on Locality: Locality: Kvartsitovyye Gorki deposit, Kasakhstan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Yuri V. Roshchin (1934-1979), Russian Geologist.
Help on Name Pronunciation: Name Pronunciation: Roshchinite + Pronunciation Say ROSHCHINITE
Help on Synonym: Synonym: IMA1989-006
 

Roshchinite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.6796:1:0.8889
Help on Cell Dimensions: Cell Dimensions: a = 12.946, b = 19.048, c = 16.932, Z = 1; V = 4,175.35 Den(Calc)= 5.13
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pmna
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.765(1), 2.85(0.8), 3.24(0.6),
 

Physical Properties of Roshchinite

Help on Cleavage: Cleavage: None
Help on Color: Color: Lead gray, Silver gray.
Help on Density: Density: 5.27
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 2.5-3.5 - Finger Nail-Copper Penny
Help on Luster: Luster: Metallic
Help on Streak: Streak: pale steel gray
 

Optical Properties of Roshchinite

Help on RL Anisotrophism: RL Anisotrophism: Distinct.
 

Calculated Properties of Roshchinite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.50 gm/cc
note: Specific Gravity of Roshchinite =5.13 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PERoshchinite = 416.00 barns/electron
U=PERoshchinite x rElectron Density=1,872.51 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Roshchinite is Not Radioactive
 

Roshchinite Classification

Help on  Dana Class: Dana Class: 03.04.15.07 (03)Sulfides - Sulfosalts
  (03.04)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.04.15)Lillianite Group (Orthorhombic, AmBnS6 where A=Pb, Ag, Mn and B=Sb, Bi)
 
03.04.15.01 Lillianite Pb3Bi2S6 Bbmm 2/m 2/m 2/m
 
03.04.15.02 Bursaite? Pb5Bi4S11 Bbmm 2/m 2/m 2/m
 
03.04.15.03 Gustavite PbAgBi3S6(?) Bbmm 2/m 2/m 2/m
 
03.04.15.04 Andorite PbAgSb3S6 Pmma 2/m 2/m 2/m
 
03.04.15.05 Uchucchacuaite AgPb3MnSb5S12 P mmm 2/m 2/m 2/m
 
03.04.15.06 Ramdohrite Ag3Pb6Sb11S24 P 2/n 2/m
 
03.04.15.07 Roshchinite Ag19Pb10Sb51S96orPb(Ag,Cu)2(Sb,As)5S10 Pmna 2/m 2/m 2/m
 
03.04.15.08 Fizelyite Pb14Ag5Sb21S48(?) P 21/n 2/m
Help on  Strunz Class: Strunz Class: 02.JB.40a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.J - Sulfosalts of PbS Archetype
  02.JB -Galena derivatives, with Pb
 
02.JB.40a Fizelyite Pb14Ag5Sb21S48(?) P 21/n 2/m
 
02.JB.40a Andorite PbAgSb3S6 Pmma 2/m 2/m 2/m
 
02.JB.40a Bursaite? Pb5Bi4S11 Bbmm 2/m 2/m 2/m
 
02.JB.40a Gustavite PbAgBi3S6(?) Bbmm 2/m 2/m 2/m
 
02.JB.40a Lillianite Pb3Bi2S6 Bbmm 2/m 2/m 2/m
 
02.JB.40a Roshchinite Ag19Pb10Sb51S96orPb(Ag,Cu)2(Sb,As)5S10 Pmna 2/m 2/m 2/m
 
02.JB.40a Uchucchacuaite AgPb3MnSb5S12 P mmm 2/m 2/m 2/m
 
02.JB.40a Ramdohrite Ag3Pb6Sb11S24 P 2/n 2/m
 
02.JB.40a Xilingolite Pb3Bi2S6 C 2/m 2/m
 
02.JB.40a Treasurite Ag7Pb6Bi15S32 B2/m 2/m
 
02.JB.40a Vikingite Ag5Pb8Bi13S30 C 2/m 2/m
 

Other Roshchinite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.77,p450,1992) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Roshchinite :
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

Search for Roshchinite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Roshchinite :

Ask about Roshchinite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

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

Roshchinite

Ag19Pb10Sb51S96 or Pb(Ag,Cu)2(Sb,As)5S10
Dana No: 03.04.15.07 Strunz No: 02.JB.40a
Locality:

 

Notes:

 

 
   
 


Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.