Sophiite Mineral Data + Say SOPHIITE

General Sophiite Information

Help on Chemical  Formula: Chemical Formula: Zn2(SeO3)Cl2
Help on Composition: Composition: Molecular Weight = 328.64 gm
   Zinc      39.79 %  Zn   49.53 % ZnO
   Selenium  24.03 %  Se   33.76 % SeO2
   Chlorine  21.58 %  Cl   21.58 % Cl
               -   %  Cl   -4.87 % -O=Cl2
   Oxygen    14.60 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn2(SeO3)Cl2
Help on Environment: Environment: Found in fumaroles 180-230 deg C.
Help on IMA Status: IMA Status: Approved IMA 1989
Help on Locality: Locality: Great Tolbachik Fissure Eruption, Kamchatka, Russian. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Sophia Ivanovna Noboko (1909-), Russian volcanoloist and mineralogist, a leading investigator of the Kamchatka volcanos.
Help on Synonym: Synonym: ICSD 67606
  PDF 45-1463
  Sofiite
 

Sophiite Image

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Sophiite

Comments: White, tabular crystal of sophiite in matrix.
Location: Great Fissure (Main Fracture) eruption, Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Sophiite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.6733:1:0.5035
Help on Cell Dimensions: Cell Dimensions: a = 10.251, b = 15.223, c = 7.666, Z = 8; V = 1,196.29 Den(Calc)= 3.65
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pccn
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.61(1), 3.807(0.23), 2.918(0.12),
 

Physical Properties of Sophiite

Help on Cleavage: Cleavage: [010] Perfect, [201] Fair
Help on Color: Color: Colorless, Sky blue, Light blue.
Help on Diaphaniety: Diaphaniety: Transparent
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Habit: Habit: Pseudo Hexagonal - Crystals show a hexagonal outline.
Help on Habit: Habit: Thin - Flat dimensioned crystals.
Help on Hardness: Hardness: 2-2.5 - Gypsum-Finger Nail
Help on Luster: Luster: Vitreous - Greasy
Help on Streak: Streak: white
 

Optical Properties of Sophiite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.06 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1995,KC= 0.2123
Help on Optical Data: Optical Data: Biaxial (+), a=1.709, b=1.726, g=1.75, bire=0.0410
 

Calculated Properties of Sophiite

Help on Electron Density: Electron Density:

relectron=3.38 gm/cc
note: rSophiite =3.65 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.03464
Boson Index = 0.96536
Help on Photoelectric: Photoelectric:

PESophiite = 40.32 barns/electron
U=PESophiite x relectron= 136.12 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Sophiite is Not Radioactive

 

Sophiite Classification

Help on  Dana Class: Dana Class: 34.6.5.1 (34)Selenites - Tellurites - Sulfites
  (34.6)Dana Type
  (34.6.5)Dana Group
 
34.6.5.1 Sophiite Zn2(SeO3)Cl2 Pccn 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: IV/K.05-40 IV - Oxides
  IV/K - Sulfides, selenides, tellurides with [XO3]2- groups and related structures
  IV/K.05 - Gravegliaite - sophiite series
 
IV/K.05-05 Gravegliaite Mn(SO3)·3(H2O) P nma 2/m 2/m 2/m
 
IV/K.05-10 Hannebachite 2CaSO3·(H2O) Pbna 2/m 2/m 2/m
 
IV/K.05-15 Orschallite Ca3(SO3)2SO4·12(H2O) R 3c 3 2/m
 
IV/K.05-20 Graemite CuTeO3·(H2O) Pcmm 2/m 2/m 2/m
 
IV/K.05-30 Choloalite CuPb(TeO3)2 Unk Cubic
 
IV/K.05-40 Sophiite Zn2(SeO3)Cl2 Pccn 2/m 2/m 2/m
 
IV/K.05-70 Burnsite! KCdCu7O2(SeO3)2Cl9 P 63/mmc 6/m 2/m 2/m
 

Other Sophiite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.75,p1211,1990) OPTIC PROP.(Am.Min.,Vol.75,p1211,1990)
Help on See Also: See Also: Links to other databases for Sophiite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

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Sophiite

Zn2(SeO3)Cl2
Dana No: 34.6.5.1 Strunz No: IV/K.05-40
Locality:

 

Notes:

 

 
   
 
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