Tusionite Mineral Data

Tusionite Mineral Data
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General Tusionite Information

Help on Chemical Formula: Chemical Formula: MnSn++++(BO3)2
Help on Composition: Composition: Molecular Weight = 291.26 gm
   Manganese  18.86 %  Mn   24.35 % MnO
   Tin        40.76 %  Sn   51.74 % SnO2
   Boron       7.42 %  B    23.90 % B2O3
   Oxygen     32.96 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+Sn(BO3)2
Help on Environment: Environment: Late-stage hydrothermal origin, rare in granite pegmatites, typically in miarolitic cavities.
Help on IMA Status: IMA Status: Approved IMA 1983
Help on Locality: Locality: Upper Tusion River, Shakhdara Range, southwestern Pamir Mountains, Tadjikistan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Tusionite + Pronunciation Say TUSIONITE
Help on Synonym: Synonym: ICSD 39625
  PDF 35-727
 

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Tusionite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:3.19615
Help on Cell Dimensions: Cell Dimensions: a = 4.787, c = 15.3, Z = 3; V = 303.63 Den(Calc)= 4.78
Help on Crystal System: Crystal System: Trigonal - RhombohedralH-M Symbol ( 3) Space Group: R 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.818(1), 3.65(0.9), 1.744(0.8),
Click Here for Large Tusionite Structure Window Crystal Structure:

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Cooper M A , Hawthorne F C , Novak M , The Canadian Mineralogist , 32 (1994) p.903-907, The crystal structure of tusionite, MnSn(BO3)2,, a dolomite-structure borate

 

Physical Properties of Tusionite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Colorless, Yellow brown, Light yellow.
Help on Density: Density: 4.73
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 5-6 - Between Apatite and Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Tusionite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.021 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.031 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.168,KPDmeas= 0.1698,KC= 0.1734
Ncalc = 1.82 - 1.83
Help on Optical Data: Optical Data: Uniaxial (-), e=1.752, w=1.854, bire=0.1020.
 

Calculated Properties of Tusionite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.32 gm/cc
note: Specific Gravity of Tusionite =4.73 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.08
Boson Index = 0.92
Help on Photoelectric: Photoelectric: PETusionite = 128.08 barns/electron
U=PETusionite x rElectron Density= 553.25 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tusionite is Not Radioactive
 

Tusionite Classification
Help on Dana Class: Dana Class: 24.03.03.02 (24)Borates - Anhydrous
  (24.03)where (A)m (B)n [XO3]p
  (24.03.03)Dana Group
 
24.03.03.01 Nordenskioldine CaSnB2O6 R 3 3
 
24.03.03.02 Tusionite MnSn(BO3)2 R 3 3
Help on Strunz Class: Strunz Class: 06.AA.15 06 - BORATES
  06.A - Monoborates
  06.AA -BO3, without additional anions; 1(D)
 
06.AA.15 Nordenskioldine CaSnB2O6 R 3 3
 
06.AA.15 Tusionite MnSn(BO3)2 R 3 3
 

Other Tusionite Information
Help on References: References: NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Tusionite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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

Tusionite

MnSn++++(BO3)2
Dana No: 24.03.03.02 Strunz No: 06.AA.15
Locality:

 

Notes: