Sophiite Mineral Data

Sophiite Mineral Data
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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 Name Pronunciation: Name Pronunciation: Sophiite Say SOPHIITE
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),
Click Here for Large Sophiite Structure Window Crystal Structure:

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Semenova T F , Rozhdestvenskaya I V , Filatov S K , Vergasova L P , Mineralogical Magazine , 56 (1992) p.241-245, Crystal structure and physical properties of sophiite, Zn2(SeO3)Cl2, a new mineral, Locality: Tolbachik Main Fracture Eruption, Kamchatka, Russia, Note: y(Zn2) corrected

 

Physical Properties of Sophiite

Help on Cleavage: Cleavage: {010} Perfect, {201} Fair
Help on Color: Color: Colorless, Sky blue, Light blue.
Help on Diaphaneity: Diaphaneity: 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
Ncalc = 1.77
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: Bulk Density (Electron Density)=3.38 gm/cc
note: Specific Gravity of Sophiite =3.65 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PESophiite = 40.32 barns/electron
U=PESophiite x rElectron Density= 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: 34.06.05.01 (34)Selenites - Tellurites - Sulfites
  (34.06)Dana Type
  (34.06.05)Dana Group
 
34.06.05.01 Sophiite Zn2(SeO3)Cl2 Pccn 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: 04.JG.15 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.J - Arsenites, Antimonites, Bismuthites, Sulfites,
  04.JG -Selenites with additional anions, without H2O
 
04.JG.15 Sophiite Zn2(SeO3)Cl2 Pccn 2/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 - Handbook of Mineralogy (MinSocAm)
6 - MinDAT
7 - MinMax(Deutsch)
8 - MinMax(English)
9 - Mineralienatlas (Deutsch)
10 - QUT Mineral Atlas
11 - Ruff.Info

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Sophiite

Zn2(SeO3)Cl2
Dana No: 34.06.05.01 Strunz No: 04.JG.15
Locality:

 

Notes: