Mineralogy Database

Sundiusite Mineral Data

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General Sundiusite Information

Help on Chemical  Formula: Chemical Formula: Pb10(SO4)Cl2O8
Help on Composition: Composition: Molecular Weight = 2,366.96 gm
   Lead      87.54 %  Pb   94.30 % PbO
   Sulfur     1.35 %  S     3.38 % SO3
   Chlorine   3.00 %  Cl    3.00 % Cl
               -   %   Cl   -0.68 % -O=Cl2   
   Oxygen     8.11 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb10(SO4)Cl2O8
Help on IMA Status: IMA Status: Approved IMA 1980
Help on Locality: Locality: Amerika stope, Langban, Varmland, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Nils Sundius (1886-1976), Swedish mineralogist.
Help on Name Pronunciation: Name Pronunciation: Sundiusite + Pronunciation Say SUNDIUSITE

Sundiusite Image

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Comments: Clear to white platy crystals to 1mm covering Hausmannite matrix.
Location: Langban, Varmland, Sweden. Scale: Picture size 1 cm.
© Tom Loomis / Dakota Matrix

Sundiusite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =6.5247:1:3.1422
Help on Cell Dimensions: Cell Dimensions: a = 24.67, b = 3.781, c = 11.881, Z = 2; beta = 100.07° V = 1,091.15 Den(Calc)= 7.20
Help on Crystal System: Crystal System: Monoclinic Space Group: C 2,Cm,C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.981(1), 2.737(0.8), 3.1(0.6),

Physical Properties of Sundiusite

Help on Cleavage: Cleavage: {100} Perfect
Help on Color: Color: Colorless, White.
Help on Density: Density: 7
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Plumose - "Mica-like" minerals forming aggregates of plume-like forms.
Help on Hardness: Hardness: 3 - Calcite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Adamantine
Help on Streak: Streak: white

Optical Properties of Sundiusite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.151 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.119 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1576,KPDmeas= 0.1621,KC= 0.1409
Ncalc = 1.99 - 2.01
Help on Optical Data: Optical Data: Biaxial (+), a=2.1, g=2.17, bire=0.0700

Calculated Properties of Sundiusite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.88 gm/cc
note: Specific Gravity of Sundiusite =7.20 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.19
Boson Index = 0.81
Help on Photoelectric: Photoelectric: PESundiusite =1,646.66 barns/electron
U=PESundiusite x rElectron Density=9,677.26 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sundiusite is Not Radioactive

Sundiusite Classification

Help on  Dana Class: Dana Class: (30)Anhydrous Sulfates Containing Hydroxyl or Halogen
  (30.01)where (A B)m (XO4)p Zq where m:p>2:1
  (30.01.01)Dana Group Sundiusite Pb10(SO4)Cl2O8 C 2,Cm,C 2/m Mono
Help on  Strunz Class: Strunz Class: 07.BD.70 07 - SULFATES (SELENATES, TELLURATES)
  07.B - Sulfates (selenates, etc.) with Additional Anions, without H2O
  07.BD -With only large cations
07.BD.70 Sundiusite Pb10(SO4)Cl2O8 C 2,Cm,C 2/m Mono

Other Sundiusite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Sundiusite :
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

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Dana No: Strunz No: 07.BD.70





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